Tag Archives: weight management

CONTRASTING THE BENEFITS OF VERY LOW CALORIE DIETS AND BARIATRIC SURGERY

diet-bariatric-surgeryBy S.N Kreitzman,V. Beeson and S.A. Kreitzmanof Howard Foundation Research Ltd

Interest in the use of weight loss to treat type 2 diabetes has been intensifying in recent years, despite the fact that the rapid therapeutic effect of weight loss on type 2 diabetes has been
well documented for decades and has been hitherto largely ignored. The current interest may be attributed in large part to a number of publications generated by evidence (from bariatric surgery) of the almost universal prompt remission of diabetes with weight loss after successful surgery.
One such study was published in the Journal of Endocrinology and Metabolism in 2004 by Cummings et al – ‘Gastric Bypass for Obesity:
Mechanisms of Weight Loss and Diabetes Remission’. In support of their efforts to promote the use of surgical techniques, the authors claimed that no more than 5-10 per cent of body weight can be lost through dieting, exercise or the few available anti-obesity medications. They further write, correctly, that: “Importantly, even mild weight loss confers disproportionate health benefits, in terms of ameliorating obesity-related comorbidities. Nevertheless more substantial and durable weight reduction would improve these ailments more effectively.”
And not correctly that:
“At present, bariatric surgery is the most effective method to achieve major weight loss. The best operations reduce body weight by 35-40 per cent.”
Quite a dramatic claim, but surgery is not the only effective means of achieving this amount of weight loss when necessary.

The very low Calorie diet

There is a readily available alternative to bariatric surgery, without the problematic aspects of bariatric surgery:
high morbidity and mortality risk, prohibitively high cost, possible post-operative addiction transfer and (in consideration of the large numbers of severely overweight people with or without diabetes) extremely limited availability. This alternative is the very low Calorie diet.
Detailed records have been kept of the weight loss results from GP practices and pharmacies. Using audit data, accumulated from UK pharmacies, it was possible to document cases where
dieters successfully lost in excess of 35 per cent of their pre-diet weight. These pharmacy weight loss programmes are based upon a replacement of all normal foods with a nutrient complete formula. There are many advantages to this approach over bariatric surgery, especially with severely overweight people. There is now an expanding literature – based upon numerous investigations into addiction – which demonstrate that in a considerable percentage of high BMI people, the same metabolic pathways that are generally recognised as part of the addiction profile are shared by people who are using food as a substance of abuse. In the case of every known addiction it is absolutely necessary to completely stop the abused substance. This is difficult when the substance in question is alcohol, tobacco or drugs; it is literally unachievable when the addictive substance is food, which is required in order to stay alive. While ultimately food is required for energy, there is no shortage of energy stored as fat and glycogen in overweight people. What must be supplied in order to keep people healthy are the vitamins, minerals, trace elements, essential amino acids and essential fatty acids. Depletion of any of these nutrients will compromise health. Post bariatric surgery patients are expected to reintroduce foods in limited quantities. In contrast, use of a nutrient complete formula provides all the essential nutrients in the absolute minimum number of Calories. This allows weight loss at the maximum safe rate, while allowing the person to completely stop eating the foods that they are abusing. This is the only approach that will interfere with the addictive problem and offer a reasonable chance of establishing a normal relationship with food in the future.

Counting the Calories

There is yet another important benefit to using a foodreplacement formula instead of traditional foods. Traditional foods are derived from various plants and animals and naturally differ in nutrient composition and Calorie contribution, so it is not possible to get an accurate estimate of the energy intake. Food composition tables (which present averages from a large number of samples) can differ widely from the composition of a specific sample. In contrast, the Caloric composition of a defined formula can be known with considerable precision. Dieters therefore can know exactly the number of Calories they are eating each day. It is well known that the Calorie deficit required to lose a pound of body fat is fixed at 3,500. The difference between the Calories in the formula and the Calories used by the individual based upon genetics and lifestyle will represent the rate at which the 3500 Calories is being depleted. Calorie utilisation for most people, especially severely overweight people who are not usually involved in massive exercise programmes, does not vary a great deal from day to day. Variations are trivial when it is realised that running a mile only consumes an additional 100 Calories, so the number of Calories used each day is basically constant. This explains the essentially straight line pattern of weight loss with VLCD. From the daily changes in weight, it is easy to determine the number of Calories used by each individual day after day. This then will inform the individual of the critical Calorie intake that will determine whether weight is gained, lost or maintained. There is no other method to gain this information under real life conditions. Cummings et al, in the paper cited above, provide estimates of the cost of bariatric surgery (2004 data) represented as QALY (quality adjusted life years), ranging from 5,400 to $36,300, which they state is well under the $50,000 generally regarded in the United States as being cost effective. It might be worth considering a VLCD pharmacy programme
which will routinely provide weight losses of one stone (6.3 kg) a month for women and one and a half stone (10 kg) for men. And unlike bariatric surgery, the programmes can be used with people who have far less weight to lose than the BMI 35-40 subjects reported here. These programmes are even suitable for obesity prevention in overweight (but not yet obese) individuals who fall into the range of BMI 25-30. This is a far more appropriate contribution to public health and prevention of diabetes.

Weight loss and type 2 diabetes

Type 2 diabetes is a disease of excess weight. There are countless thousands of papers in the literature that concur with this statement. It would seem to be obvious therefore that treatment protocols should focus on rapid and effective weight loss for patients with diabetes. If one thinks ‘diabetes is excess weight’, one would be right most of the time.
Conventional weight loss options have generally proven so unreliable that it is understandable and (almost) forgivable that weight loss is not vigorously promoted for treatment of
type 2 diabetes. Nevertheless, there is a much better option than bariatric surgery for weight loss. Worldwide research spanning a period approaching 40 years has repeatedly
demonstrated that sufficient weight loss to treat diabetes can be achieved, and indeed is currently being achieved in the UK and Ireland by a large number of pharmacists.
Furthermore, fully established diabetes is only part of the problem (even though the UK is reported to be spending about £9 billion a year dealing with diabetes).
There is also a well recognised pre-diabetes syndrome with resistance to insulin, hypertension and elevated blood sugar and lipids, the so-called syndrome X. The best recognised treatment is also, of course, weight loss. A very detailed meta-analysis and review of co-morbidities related to obesity and overweight from British Columbia, published in 2009, identified 18 co-morbidities contributing, according to the authors, to a very large future disease burden as weight continues to be a medical problem. Pharmacists deserve considerable recognition for providing a service for remission of diabetes and relief of co-morbidities, where present, without depleting the assets of the National Health Service.
And, crucially, praise for the effective treatment of excess weight in hundreds of thousands of documented patients.

 

PDF version: contrast vlcd & surgery pharmicist 2012(1)

SHARING WEIGHT MANAGEMENT ADVICE WITH PATIENTS

We all know that the key to weight loss is eating less and exercising more. However, dropping to under 1,200 calories without supplementation leads to nutrient deficiencies, which perpetuates the myth that lower calorie diets are dangerous

It is comforting to know that nurses are one of the few groups left who understand the suffering experienced by patients who are overweight and who recognise obesity as a problem worthy of effective action. Weight control is difficult and unfortunately it is much easier to eat calories than it is to exercise them away. A calorie gap of 3,500 calories between the calories eaten and those used is necessary to dispose of a single pound of excess body fat – 3,500 calories represent
a substantial amount of exercise. If the calories actually eaten are more than the calories used by the other activities of the day, the exercise will only reduce the calorie excess and not result in weight loss. It might, however, slow the weight gain. It really is necessary to eat less in order to manage weight.

No easy solution

There is no secret to weight management: the calories eaten have to be considerably less than those being used for a sustained period of time. The continued health of the patient requires them to consume all the essential nutrients necessary for life and health, which becomes increasingly difficult as the amount of food consumed is reduced or treatments actively promote malabsorption.
If we maintain a varied selection of foods, we can feel reasonably confident that we are getting the complete array of essential nutrients. However, while the plants and animals we choose for food each have some of the essential nutrients required by man, none has them all. To get the right amounts for sustained health from unsupplemented foods it is absolutely essential that we eat in excess of 1,200 calories. Eating foods with lower calorie totals cannot provide all the nutrients that we need. The myth that dropping calories below about 1,200 in order to lose weight is unhealthy is true, but not because the calories are low – a fat person has an enormous store of calories available. The problem is that dieters become nutrient deficient.
Providing the missing nutrients, however, permits dropping the calorie intake much further without harm, as long as there are reserves of fuel left in the body. Fuels available for the body are glucose (stored as glycogen) and fat. An obese individual has about 37,000 calories in reserve for each stone of excess weight and therefore has no realistic need to eat more. He just needs to get the essential nutrients. When these come from a nutrient-complete formula food, the results are ideal: complete nourishment and minimal calories. Supplying the essential nutrients in a prepared mixture, such as in an enteral feed, assures that nutrient deficiencies do not occur.

The role of the pharmacist

An expanding network of pharmacists is offering a range of treatments for weight problems. They have the training, the respect of the public, the contact hours and the desire to offer weight management as a professional service. NICE recommends that specialists be used for extended very low calorie diets (VLCDs).1 These pharmacists are trained and experienced specialists in the use of VLCD.
Pharmacies following this route are achieving a great deal and GPs and nurses are becoming much more comfortable directing overweight patients to these highly trained and experienced pharmacists. At the same time the availability of trained pharmacists is becoming more widespread, which is making these experts much more accessible to a wider deserving population.

Conclusion

Weight loss is more than a cosmetic issue. Weight loss can lower blood pressure, normalise blood lipids, practically
eliminate type 2 diabetes, reduce the severity of asthma, bring relief to arthritics, increase the fertility of women, relieve sleep apnoea, provide an opportunity for patients to be considered for elective surgery, decrease the need for antidepressants, make exercise more possible and thus improve cardiovascular health, and vastly improve the quality of life for patients in a prejudiced and intolerant world. Pharmacists are emerging as the weight management specialists, providing lifestyle advice, effective treatments and support, as well as follow-on help for the most difficult aspect of managing weight: the longterm maintenance of weight lost. Your overweight patients will appreciate knowing about it.

PDF version: 4-3-sharing-advice

ADVANCED OBESITY MANAGEMENT TRAINING SOLUTIONS

S.N Kreitzman Ph.D. (Nutritional Biochemistry) R.Nutr. (UK Registered Nutritionist),
S. A. Kreitzman, & V. Beeson Howard Foundation Research Ltd. Cambridge UK

THE EFFECTIVENESS OF VERY LOW CALORIE DIETS IN MANAGING OBESITY
Obesity is a serious problem in modern society, and one that needs to be urgently addressed by healthcare professionals. Unfortunately, widespread obesity management will not be possible until healthcare professionals accept the brutal fact that advising an obese patient to ‘eat less” is as misguided as managing an alcoholic by advising him or her to “drink less.”
In the first instance, advanced obesity management must recognise that there is a difference between people who become .)ese and the rest of the normal weight j,opulation. Not every drinker becomes an alcoholic, and in the same way, only some people become obese. This is not a trivial comparison. Many people can and do control their eating behaviour arid never appear to be in danger of escalation into obesity. For those who do become obese, however, their food behaviour often displays the compulsions and cravings of an addiction. Indeed, it is when food consumption is put into the context of other addictive behaviours that the nature of the roblem
becomes clear.
The link between addiction and obesity is finally now being reflected in the search for drugs to combat obesity, as can be seen
in the 30 July, 2010 report in the Lancet on the use of naltrexone in conjunction with bupropion as a weight loss treatment. It is important to recognise the basic fact that there is a component of addiction in food abuse and ultimately obesity. The most powerful long term treatment for addictions is complete abstinence from the addictive substance. A reformed smoker is someone who does not smoke, and a reformed alcoholic is someone who does not drink Comprehending this simple reality explains why total food replacement formula (very low calorie diets) are extremely effective and conventional low calorie diets are much less effective for seriously overweight patients. To treat any addiction (including obesity) effectively it is necessary to stop the substance of abuse. Very low calorie diets – essentially low fat enteral feeds – are absolutely necessary because they permit a patient to safely stop eating for prolonged periods. No lifestyle or behavioural change can be effective while the patient is caught in the biological quagmire of addiction. The advantage of a Total Food Replacement programme is that nutrition is provided by an engineered
formula that is nutritionally complete,
allowing the dieter to remove the addictive substance (food) from his or her life and remain healthy while the weight is lost. The value of a total food replacement formula programme in the treatment of overweight and obesity should now be obvious. TOTAL food replacementis the only means by which those who are subject to food abuse may avoid the addictive stimulus that perpetuates their weight problem.
EVIDENCED BASED CARE
The rapid proliferation of type 2 diabetes is currently one of the more serious healthcare problems. Current estimated costs to the NHS for treatment of this problem are a staggering El million per hour. In almost all cases however, a simple treatment exists that costs the NHS nothing, can normalise blood sugars within a few days (even in long standing diabetes) and in most cases actually put type 2 diabetes into remission. This important clinical knowledge is inadequately recognised because of the mantra for evidence based care. It is impossible to design a double blind placebo controlled study of VLCD.
While case studies are often considered to be a lesser level of evidence, the balance of believable evidence must shift, especially when the number of cases being audited becomes virtually the entire treatment population. For the past 25 years GPs and pharmacists have been treating overweight and obese patients with VLCDs and monitoring their progress weekly over the course of their treatment. Those medical details and weekly progress reports have all been recorded over the years, and a number of audits from individual GP
practices and a 25 practice meta-audit have been published.
As the population of GP practices and pharmacies has expanded and computerised patient records have become more available, it has become Training to use VLCD properly requires education
Dieters can safely remove the addictive substance (food) and remain healthy theoretically possible to audit the entire population. A sample from a group of pharmacies in the Republic of Ireland has provided audit data for over 9000 Lipotrim patients. A single pharmacy in Prestwich, Manchester has provided audit data for over 1100 dieting Lipotrim patients. Since these patients are seen weekly and progress recorded by health professionals, the information should be viewed as highly credible and EVIDENCE BASED.
At Prestwich 1148 overweight patients with a median BMI of 33.6 kg/m’ were enrolled into the Lipotrim weight management programme. Of these, 25% were morbidly obese with a BMI >40 kg/ m2. At the time of audit, during which manypatients were still actively dieting, the median BMI had decreased to <30 kg/m2. 94% of the dieters lost more than 5% of their pre-diet weight, 47% lost more than 10% and 21% of the patients lost more than 20%. Importantly, all patients with type 2 diabetes had their medication stopped by their GP.’ The weight losses (comparable in most cases to that achieved by bariatric surgery) are having the same effect on type 2 diabetes as that reported for surgical procedures. The effect is in fact so dramatic, patients are not permitted to start the diet unless the GP has stopped diabetic medication. Blood sugars will normalize within a few days, and with afew weeks weight loss it is unlikely that any further diabetic medication will be required.
Training to use VLCD properly requires education. There are simply too many myths. The training programme for pharmacists running the Lipotrim weight management programme was awarded the SMART Best Educational Training Award For Pharmacists in 2002. Based upon sound physiological principles that most professionals know but are continuously seduced to ignore, there must be a greater recognition of need for VLCD, the only widely available tool for obese patients mired in the addiction aspect of food abuse. •
1. (Data presented at the 2010 National Obesity Forum Conference by Pharmacist Fin McCaul)

PDF version: 2-1NAPC advanced obesity management

USE OF VERY LOW ENERGY, NUTRIENT COMPLETE FORMULA FOODS, AS TOTAL FOOD REPLACEMENT FOR WEIGHT CONTROL

8-1To fully understand the medical value of nutrient- complete formulated foods as a tool for weight management, there are a few fundamental concepts that need to be explained. These include the protein sparing modified fast; the mechanisms and value of ketogenic diets, minimum safe energy intakes and enteral food formulas. The value of this approach is amply demonstrated by substantial clinical evidence accumulated over a period of nearly 40 years.
Beginning in 1975, a series of reports from the Bistrian and Blackburn medical team demonstrated the value of a very low-energy dietary regime for weight management in a variety of difficult obese patients. This team had the advantage of considerable nutrition expertise and they devised a protein sparing modified fast — essentially a home-concocted Very Low Calorie Dietary formulation that was nutrient complete. Unfortunately the remarkable success (and safety) of this approach was obscured by commercial greed – not by the medical team, but by external commercial exploitation. A commercial product was developed and widely sold that contained virtually no nutrition. it was based upon a hydrolyzed nutritionally incomplete protein (collagen) in cherry syrup. This product was heavily promoted and widely hyped and inevitably, it resulted in a number of deaths.
Quite properly, the Liquid Protein Diets have not been available since the late 1970s. Unfortunately however, a total lack of nutritional understanding led to the assumption that low energy liquid formulations were dangerous as a concept. In fact there are now nearly 40 years of worldwide experience with numerous properly formulated nutritionally complete products which should be evidence enough of safety.
There is an often stated mantra, surprisingly even from nutrition specialists, that there must be some level of calorie intake (in the neighbourhood or 1000 to 1200 calories per day) below which diets become unsafe. Once again, it is simply the superficial understanding of food and nutrition biochemistry that has given this notion some credence. All common foods may be thought of basically as recycled nutrients from the plants and animals we choose to consume. All are complex formulations of the chemicals that make up the composition of those plants and animals. Many of these chemicals are common to all living things and some of them are useful and even necessary for human health. They also contain large numbers of chemicals that are either inert or toxic to other animals, including humans. The key point, however, is that there is no naturally occurring food that contributes all the required nutrients for humans. We therefore require a varied diet to attempt to create a mix that will maximize the chemistry we need and minimise the problematic substances.
The crucial point here is that – given the varying chemistry of the plants and animals we consume — it is virtually impossible to assemble a nutrient-complete daily diet with a total of less than around 1200 calories. When food diets with lower calorie intakes are provided, nutrient deficiencies invariably cause illness. It is very important to note here that it is the nutrient deficiencies — and not the low calorie count — that causes the problems.
When it became clear that nutrient complete enteral feeds could be provided that contained, by design, all the essential nutrients, it demonstrated that the minimum calorie intake was nowhere near the 1200 calorie barrier. In fact, modern formulations have a calorie component determined primarily by the calorie contribution of the essential amino acids and essential fatty acids (and to a lesser extent by the lactose from the necessary milk component, which provides very high quality proteins to the formulations). These limits however are closer to 400 calories per day, not 1200.
The most effective and safe formulations are those that induce ketosis. Ketones are a by-product of the incomplete breakdown of free fatty acids. They are essential for sparing protein utilization and helpful in controlling the hormonal balance between insulin and giucagon, which helps control hunger. Many of the body’s tissues can use free fatty acids as fuel, but critically there are a few (including the brain) that cannot. Unless there are sufficient ketones present, which are water soluble and can pass through the blood brain barrier to provide energy for brain function and survival, the body must de-aminate amino acids from proteins to create glucose. Glucose can not be created from fat. This is why ketones are protein sparing. Virtually all tissues, with the possible exception of liver, can use ketones for energy.
It is clear from the controlled accessibility of very low energy diets through healthcare professionals, that detailed records are available of the successful results of this form of treatment. A large number of these results have been published. Proper nutrition, provided in defined very low calorie formulations, results in maximum safe rates of weight loss and there is considerable evidence to support its value to modern medicine.
S.N Kreitzman Ph.D, R.Nutr. (UK Registered Nutritionist)
V. Beeson Howard Foundation Research Ltd.

PDF version: 8-1-nhsta0002a

GP/PHARMACIST: SYNERGY FOR OBESITY CONTROL

In order for weight loss programmes to be successful, it is essential to conduct post-diet monitoring and provide the overweight patient with long-term support. The Lipotrim pharmacy-based programme, therefore, encourages an interactive approach with GPs to ensure successful, sustained weight management

it seems easy to justify practice time and resources to assist overweight and obese patients lose weight. The link to type 2 diabetes alone is sufficient. With rapid weight loss, normalisation of blood sugar levels is achieved in days. With further weight loss, the disease can be held in remission.
Better long-term glycaemic control is achieved with rapid weight loss, even after some weight regain, than is achieved by losing the same amount of weight more slowly. Almost 50% of hypertensive patients can reduce drug treatments with weight loss. Surgical interventions can be scheduled when substantial weight is lost. Fewer antidepressants are required and overall, the frequency of GP visits is significantly lower for leaner patients.
There is no shortage of choice to meet the weight loss needs of individual patients: drugs, both current and promised for the future; dietetic referral; exercise on prescription and pharmacy-based treatment programmes. Each has a place depending upon the specific clinical needs of the patient. An exercise prescription may not be the best choice for a 40-stone patient who may struggle simply to walk, which at this weight is considerable exercise.
While willpower can often help people lose weight over a short defined period, upholding control for the months, years or even decades required for maintenance is quite a different story. Loss of weight by any means confers absolutely no lasting legacy for weight maintenance. Weight loss, however achieved, is only the beginning of the treatment, not the end point. When the drug therapy is discontinued, when the counsellor moves on, when the patient is “cured” of excess weight – this is the point at which a dieter requires the maximum attention and assistance.
Weight management requires control of eating behaviour over a sustained period of time. A difficulty comes with justifying practice time and resources for a patient who has achieved weight loss and is now both healthier and at a normal weight. The expectation that this patient will sustain the weight loss without considerable help is naïve.

Lipotrim pharmacy-based programmes are ideal for the varying weight management needs of patients. Obesity prevention is part of the pharmacy complement of health promotion services, dealing with excess weight before it reaches obese levels and exacerbates comorbidities. The care of patients during weight loss is advantageous when monitored by the pharmacist, who understands the implications of other drug treatments that may interact with the weight-loss programme. But it is at the post-diet stage that the pharmacist is best equipped to provide essential long-range guidance, support and education that will increase the length of time that the weight loss is maintained.
Both the new GP and the pharmacy contracts strongly encourage interactive efforts to deal with a range of health problems, most of which have weight-related implications. Weight loss is vital for management of cholesterol, blood lipids, diabetes, hypertension and asthma. It even impacts upon programmes for smoking cessation. The success of the Lipotrim pharmacy-based programmes in dealing with weight loss and maintenance should not be overlooked.

PDF version: 5-5-synergy

TREATING OVERWEIGHT PATIENTS: WHAT ARE THE OPTIONS?

People suffer terribly from the consequences of their excess weight and many expect help from the health service. Here are some options…

A 5’2 woman who weighs 100 kg (15 st 10) has a BMI of 40 and is morbidly obese. If she manages to lose 5% of her weight, she will weigh 95 kg (14 st 13), which is a BMI of 38.6. Can anyone honestly say that this has been a sufficient treatment? To get her down in weight to the top of the normal range (BMI 25) she will have to lose 38.5 kg (approximately 6 stone).

Tell her to exercise?

The calories used in exercise will make a difference only if the patient is in calorie balance. Most overweight people are routinely eating in excess of their daily needs. Around 2,000 calories can be consumed with very little recognition that the average daily expenditure has been matched. Assuming, however unlikely, that calorie balance has been achieved, the excess weight represents 296,400 calories below the calorie balance level that will have to be used up by increased activity. At 100 calories for a mile run, the patient will simply have to run 3,000 miles (without any additional overeating).

Cut back a little to lose weight slowly?

Modest reductions in calories could theoretically result in weight loss, although the best efforts of the Swedish healthcare system could not produce any.1,2 Of course, it can’t be emphasised often enough, the modest reduction has to be from the equilibrium level, not from current intake. Standard advice has been to limit the rate of weight loss by encouraging a small calorie gap. This most often assures failure to lose substantial weight. Arguing that slow weight loss somehow results in better weight maintenance (except perhaps maintenance of the prediet weight) was convincingly demonstrated
to be false as far back as 1959. Stunkard showed that regardless of the programme for weight loss, or the expertise of the clinic, after one year 95% had put back all the lost weight.3 After two years 98% and by five years virtually all of the dieters had put the weight back on.

Faster weight loss is actually better

Very low calorie diet (VLCD) treatment has a well-documented, vastly better, record for weight loss and weight maintenance.4 The fallacy that reducing calorie intake sufficiently low to encourage a rapid loss of weight was harmful, resulted from the fact that the poor distribution of essential nutrients in ordinary foods makes it very difficult to create a nutrient-complete diet under conditions of food restriction. It is actually impossible to achieve an unsupplemented nutrient complete diet at intakes below 1,200 calories. When traditional food diets were attempted below 1,000 calories, dieters were put at risk. When the need for dieting was for a prolonged period, it was inevitable that various nutrient stores were depleted. The result was some sort of health compromise. The nature of the compromise and the consequences depended upon which nutrients happened to be depleted by the unique food choices of the dieter. What was required was a nutrient-complete source, which guaranteed nourishment and at the same time provided the least possible calorie levels so that a maximum rate of safe weight loss could be achieved. Liquid enteral feeds meet the nutrient criteria, but are usually designed to cause weight stability or even weight gain. These high-calorie levels are generally met by relatively high levels of fat. Simply reducing fat levels in enteral formulas solved the calorie problem. An ideal nutritional product with the absolute minimum of calories consistent with a healthy diet is achieved. The modern VLCD can be used with confidence, both in the reliability of the weight loss, and the safety of the monitored programmes. There are contraindications and medical issues that need to be understood, but under proper care the weight loss needs of seriously overweight patients can be met.

Help is available and simple to use

An expanding network of pharmacists are offering a range of treatments for weight problems. They have the training, the respect of the public, the contact hours and the desire to offer weight management as a professional service. NICE recommends that specialists be used for extended VLCD treatment.5 These pharmacists are trained and experienced specialists in the use of VLCD. Suggest a pharmacist to offer your patients real help with their excess weight. This will even reverse the ever increasing prevalence of type 2 diabetes.

References

1. Sjöström D, Peltonen M, Wedel H, Sjöström L. Differentiated long-term effects of intentional weight loss on diabetes and hypertension. Hypertension 2000;36:20-5.

2. Karlsson J, Taft C, Rydén A, Sjöström L, Sullivan M. Ten-year trends in health related quality of life after surgical and conventional treatment for sever obesity: the SOS intervention study; Int J Obesity 2007;31:1248.

3. Stunkard A, McLaren- Hume M. Results of treatment for obesity (a review of the literature and report of a series). AMA Arch Intern Med 1959;103:79-85.

4. Saris WH. Very-lowcalorie diets and sustained weight loss. Obes Res 2001;9:295S-301S.

5. MIMS. NICE publishes guidance on overweight and obesity. London: MIMS; 2007.

PDF version: 4-4-Treating-overweight-patients

OBESITY PANDEMIC – DIABETES DETERRENCE BY WEIGHT LOSS: PHARMACY BENEFITS PRIMARY CARE

Stephen Kreitzman Ph.D, R.Nut. (UK Registered Nutritionist) & Valerie Beeson
Howard Foundation Research Ltd. Cambridge UK

It should be reasonable to justify practice time and resources to assist overweight and obese patients lose their weight. The link to type II diabetes alone is sufficient. With rapid weight loss, normalisation of blood sugar
levels is achieved in days and with further weight loss, the disease can be held in remission. Better long term glycaemic control is achieved with rapid weight loss, even after some weight regain, than is achieved with the same weight lost more slowly. About 50% of hypertensive patients can reduce drug treatments with weight
loss. Surgical interventions can be scheduled when substantial weight is lost. Fewer anti-depressants are required and overall, the frequency of GP visits is significantly lower for leaner patients.

There is no shortage of choice to meet the weight loss needs of individual patients. Drugs, both current and promised for the future, dietetic referral, exercise on prescription, and pharmacy based treatment programmes are all needed in order to deal with the massive problem of obesity. Each has a place depending upon the specific clinical needs of the patient. An exercise prescription may not be the best choice for a 40 stone patient who may struggle simply to walk, which at this weight is considerable exercise. Weight loss has been advocated as an adjunct to treatment for patients with conditions such as diabetes type 2, hypertension,
osteoarthritis and a catalogue of other disabilities. Generally, little attention is paid to this option because of the difficulty patients have experienced in losing adequate amounts of weight and keep it off. The widespread availability of effective weight loss programmes in UK and Irish pharmacies, however, argues strongly for offering overweight patients, especially type 2 diabetics, an opportunity to try a course that leads to less dependence on drugs and frequently leads to long term remission of disease.

Diabetes type ll is nearly 100% reversibly related to excess weight

For diabetes, there are really two basic facts to consider. The first is that type II diabetes is a disease that has a primary etiology which is close to 100% REVERSIBLY related to excess body weight. The second fact is that diabetic patients can lose enough weight within a few days to bring their blood sugars under control and enough further weight within weeks to crucially reduce cardiovascular risk factors and apparently keep the disease in remission, even with some weight regain.

WEIGHT SPIRAL:

Standard treatment for type 2 diabetes, with emphasis on using drugs to lower the blood sugar levels, often results in a relentless vicious circle. High blood sugar leads to drug intervention, which results in increased body weight, which in turn elevates the blood sugar, which increases the requirement for more potent drugs,
which spirals to obesity and possible insulin dependency. Patients are getting fatter as a result of treatment and this necessitates more aggressive rug usage. With significant weight loss, drug usage can be reduced and in many cases stopped permanently.

LONG TERM WEIGHT MANAGEMENT

While willpower can often help people lose weight over a short defined period, control for the months, years or even decades required for stability is quite a different story. Loss of weight by any means confers absolutely no
lasting legacy for weight maintenance. Weight loss, however achieved, is only the beginning of the treatment, not the end point. When the drug therapy is discontinued. When the counsellor moves on. When the patient is “cured” of excess weight. This is the point at which a dieter requires the maximum attention and assistance.
Weight management requires control of eating behaviour over a sustained period of time and the implementation of lifestyle changes. Justifying practice time and resources for a patient who has achieved weight loss and is now both healthier and at a normal weight is difficult. The expectation that this patient will sustain the weight loss without considerable help, however, is naïve. Pharmacy based programmes are ideal for the varying long term weight management needs of patients.

Obesity prevention can also be part of the pharmacy contribution to health promotion services; dealing with excess weight before it reaches obese levels and exacerbates comorbidities. The care of patients during
weight loss, is advantageous when monitored by a pharmacist, who understands the implications of other drug
treatments that may interact with the weight loss programme. But it is at the post diet stage that the pharmacist
is best equipped to provide essential long range guidance, support and education that will increase the
length of time that the weight loss is maintained.
Both the new GP and the pharmacy contracts strongly encourage interactive efforts to deal with a range of health problems, most of which have weight related implications. Weight loss is vital for management of, cholesterol, blood lipids, diabetes, hypertension or asthma. It even impacts programmes for smoking cessation.

ACHIEVING A MAXIMUM SAFE RATE OF WEIGHT LOSS

Modest reductions in Calories can theoretically result in weight loss. Of course, the modest reduction has to be from the equilibrium level, not from current intake. If a person is overeating by 2000 Calories a day (very common in the obese), a modest reduction in Calorie intake will not cause weight loss.
There is a maximum rate of weight loss for any individual. A total fast provides zero calories and therefore requires that all the Calories necessary for life come from the body fuel reserves. A total fast, however, provides no nutrients and since an obese patient has a far greater reserve of calories than stores of other essential nutrients, a total fast is out of the question as a treatment. To be healthy, a diet has to supply
adequate essential amino acids, essential fatty acids, vitamins, minerals and trace elements. A total fast cannot be a valid treatment for obesity. The simple idea of reducing fat levels in an enteral formula solves both the Calorie and the nutrient problem. An ideal nutritional product with the absolute minimum of Calories consistent with a healthy diet is achieved. Lipotrim is an example of such a product, providing a maximum safe rate of weight loss. The literature on safety and efficacy is massive. The time has really come to pay attention to it.

BENEFITS OF WEIGHT LOSS

There is also an extensive literature on the beneficial effects of weight loss on cardiovascular risk factors, on blood lipid profiles and blood pressure. Managing weight in general practice is time consuming. The beneficial results from reliable weight loss on the glycaemic control and the cardiovascular risk factors more than justifies pharmacy cooperation. It benefits patients and makes good use of pharmacists’ training and facilities.
Weight is extremely important to patients generally and has a critical influence on the clinical course of many medical conditions. Uniquely, however, with type II diabetes, because the blood sugar can normalize so quickly under conditions of rapid weight loss, it is essential that hypoglycaemic medications are stopped prior to dieting. This requires an understanding, on the part of the prescribing GP, of the need to stop drug treatment and follow up of the patients.

THE IMPORTANCE OF PHARMACY IN WEIGHT MANAGEMENT

The need to deal with excess weight is no longer simply a cosmetic issue. Obesity has become pandemic. The serious consequences of excess weight are being acknowledged as type 2 diabetes rates soar in children as well as adults. There is probably no other service that a pharmacist can provide that will prove to be as valuable to the needs of general practice as weight management. When effective self-funding programmes are available that do not require allocation of scarce resources from PCTs, it is hard to imagine any pharmacy failing to cooperate with a weight management programme. The problem has become so pervasive, that it will take a wide variety of treatments, drugs and public education to have any impact. Hospital programmes for weight management are overwhelmed. Pharmacy is the best community resource and pharmacists’ training ideal for providing professional assistance in dealing with the major health issue of the decade.

REFERENCES

Wing RR, Blair E et al. Calorie restriction per se is a significant factor in improvement in glycemic control and insulin sensitivity during weight loss in obese NIDDM patients. Diabetes Care 17:30-36,1994.
Wing RR, Marcus M & Bononi P. Glycemic control after weight loss is affected by how weight loss is achieved. Diabetes, 39: suppl 1, 50A,1990.
Wing RR, Marcus MD, Salata R, Epstein LH, Miaskiewicz S & Blair EH. Effects of a very low calorie diet on long term glycemic control in obese type II diabetic subjects. Arch Int Med, 151: 1334-1340, 1991.
Weck M, Hanefeld M & Schollberg K. Effects of VLCD in obese NIDDM (noninsulin dependent diabetes) on glucose, insulin and C peptide dynamics. Internat J Obes, 13: suppl 2, 159-160, 1989.
Uusitupa M, Alaakso M et al. Effects of a very-low-calorie-diet on metabolic control and cardiovascular risk factors in the treatment of obese non-insulindependent diabetes. Amer J Clin Nutr. 51:768-773,1990.
Shaper AG, Wannamethee SG & Walker M. Body weight: implications for the prevention of coronary heart disease, stroke and diabetes mellitus in a cohort study of middle aged men. Brit Med J, 314: 1311-1317, 1997.
Reports on tasks for scientific cooperation (EU SCOOP)
Report of experts participating in Task 7.3, September 2002 Collection of data on products intended for use in very-low-caloriediets Directorate-General Health and Consumer Protectionz

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PHARMACIES LEAD THE WAY IN OBESITY MANAGEMENT

Pharmacists can play an important role in weight management.
And there’s evidence to support their effectiveness.

Early in October 2010, the National Obesity Forum Conference in London heard a presentation by Fin McCaul, the pharmacist at Prestwich Pharmacy in Manchester. Mr McCaul, who is also chair of the Independent Pharmacy Federation, was presenting his pharmacy’s outstanding results in treating overweight and obesity at the pharmacy. His paper, ‘Options for the orbidly obese’, was based on 1,148 overweight patients with a median initial BMI of 33.6 kg/m2
enrolled into the Lipotrim weight management programme. Of these patients, 25 per cent were morbidly obese with a BMI >40 kg/m2. At the time of audit, during which many patients were still actively dieting, the median BMI had decreased to <30 kg/m2. Results showed that 94 per cent of the dieters lost more than 5 per cent of their pre-diet weight, 47 per cent lost more than 10 per cent, and 21 per cent of the patients lost more than 20 per cent. The presentation highlighted the impressive weight loss results being achieved in pharmacy. Given that the organisers of the programme chose to position the presentation in the section of the conference devoted to bariatric surgery, Mr McCaul concentrated his results on the subset of the dieters who were of greatest relevance to the surgeons – the morbidly obese. Morbidly obese people are generally considered ‘heart sink’ cases; they are notoriously difficult to treat. The reason is largely due to the common chemistry with other examples of substance abuse. Recognition of this common chemistry is now leading to the development of weight management strategies involving drugs which are important in the treatment of alcohol and drug addictions.

1-6aAdvantages of weight loss
There is certainly plenty of justification for helping overweight patients. Weight loss can lower blood pressure, normalise blood lipids, practically eliminate type 2 diabetes, reduce the severity of asthma, bring relief to arthritics, increase the fertility of women hoping for pregnancy, relieve sleep apnoea, and provide an opportunity for patients to be considered for Pharmacists can play an important role in weight management. And there’s evidence to support their effectiveness. elective surgery. Loss of weight can decrease the need for antidepressants, make exercise more possible – thus improving cardiovascular health, and can vastly improve the quality of life for patients. Methods of treatment, however, are not universally agreed upon. Somewhat unsurprisingly, bariatric surgeons tend to favour the surgical approach to weight loss. According to the Department of Bariatric Surgery at Imperial College, the current burden of morbid obesity in the UK is approximately 720,000 patients who meet NICE criteria for eligibility for surgery. In 2008 only 4,000 operations for morbid obesity were performed in the public and private sector combined. Even if the number of patients being treated by surgery was doubled, the impact on the problem would still be small and fall far short of the treatment needs of the seriously overweight population. Most surveys estimate that in the UK about 60 per cent of the population are overweight and about 30 per cent are already obese. Assuming a 60 million UK population, the number of people with a weight problem calculates to 36 million overweight and 18 million obese. Treating this many people surgically is unrealistic, to say the least. In addition, there is an increasing tendency for people to seek less expensive or more readily available bariatric surgery abroad, which has led to an ethical dilemma for NHS specialists. The costs to the NHS of providing aftercare, expected free by UK citizens, or emergency subsequent surgery when procedures initiated abroad go wrong, can be unplanned for and a substantial drain on NHS resources2.
Pharmacists’ role
Bariatric surgeons (in the current absence of a selection of effective weight loss drugs) are increasingly attempting to convince the public and the professionals that surgery is the only method of effectively treating seriously overweight people. The evidence presented by Mr McCaul clearly demonstrated that there is a non-invasive treatment that can be as effective. Like the claims for remission of diabetes as a result of the surgery, diabetes remissions are obtained by pharmacists as well since it is the loss of weight that leads to the remission. Usually, the blood sugar control is so rapid that it has become mandatory to get the doctor’s cooperation in stopping oral hypoglycaemic medications prior to the patient dieting. Without this step, patients are not permitted to participate in the Lipotrim programme. The results presented for this difficult cohort of morbidly obese patients was suitably impressive. These were very large individuals indeed, with half presenting with a BMI above 45 – the heaviest just below BMI 70. From this subset of 267 patients, the results reported were:

  • Median BMI was 45.1 at enrolment;
  • 237 patients lost over 5 per cent of pre-diet weight;
  • 141 had lost over 10 per cent of pre-diet weight;
  • 34 patients had lost over 20 per cent.

The programme at Prestwich is only one of more than 1,500 UK pharmacies treating overweight patients in this way. What’s more, the introduction of Lipotrim’s patient tracker software now permits on-demand audits of the results obtained by each pharmacy – essential for demonstrating effectiveness for commissioning requirements. Mr McCaul’s audience – primarily surgeons – listened for the most part in attentive silence, but the questions put to him at the end of his presentation were extremely revealing and illuminating. One overly distressed questioner was seriously worried that a few weeks of what is essentially a nutrientcomplete enteral feed (to effectively treat morbid obesity and its medical consequences) would compromise the patient’s relationship with food and cause chaos in the family dynamic. As she summed it up: there was a risk of “demonising food”. Leaving aside for a moment the point that bariatric surgery is an invasive and dangerous procedure that results in a state of permanent malnutrition, it is worth remembering that morbidly obese individuals generally have a very destructive relationship with food. To these individuals, food is a substance of obsession and addiction, and eating is a compulsive behaviour. Modifying the patient’s relationship with food is arguably a very worthwhile goal.

One of the more disturbing post-surgical problems (being widely reported from the US, where large numbers of surgeries are performed) is the unexpected and unwelcome problem of addiction transfer. A quick Google search unearths the massive scope of the problem, in which the loss of the ability to eat (due to weight loss surgery) is apparently leading to the development of substitute addictions – to alcohol, drugs and other destructive activities.

1-6bTotal food replacement
The total food replacement programme owes its success in no small part to the first principle that – instead of inducing malnutrition – the formulated enteral feeds are generally much more nutritious than the ordinary food choices of the
patients. As all essential nutrients are provided, the patients remain healthy throughout their programme. Where there
is a component of food abuse associated with the weight problem, the nutrient formulas are the only way that normal
foods – the addictive substances – can be safely eliminated so that the dieter can have a better chance of success.
An expanding network of pharmacists is offering a range of treatments for weight problems. Pharmacists have the training, the respect of the public, the contact hours and the desire to offer weight management as a professional service.
The National Institute for Health and Clinical Excellence (NICE) recommends that specialists be used for extended treatments involving total food replacement. Pharmacists that join this programme are trained and experienced specialists in this area.
Unlike surgery, there is no cost to the NHS, and no serious sideeffects.

The cost to the patient is less than the money a morbidly obese individual will have been spending on food, and the level of weight loss is sufficient to put type 2 diabetes into remission. The documented and audited successes of these dieters is a welcome testament to the leadership role that pharmacists are taking by providing important healthcare services to their community

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HEALTHY WEIGHT MANAGEMENT

Messages abound in the media today about nutrition and body weight. But often these messages are more about controversy than provision of information. Dr Stephen Kreitzman and Valerie Beeson elaborate on the subject of weight management from beyond the hype

PHARMACY IS ONE OF THE FEW PLACES LEFTTHAT THE
public can rely on for responsible information. With regard to food, nutrition and especially weight management, the media appears to have totally abandoned its duty for accountability. The messages frequently given to the public by print and electronic media regarding the food they are eating are reckless, sensationalised (definition: “to cast and present in a manner intended to arouse strong interest, especially through inclusion of exaggerated or lurid details”) and apparently designed to be primarily entertainment rather than informative and
helpful even when presented in a ‘documentary’ format.
What constitutes a ‘healthy’ diet
A ‘healthy’ diet is one that provides all of the components that human beings are required to recycle from eating the plant and animal materials we call food. Consider, for the moment, a carrot. A carrot was part of a living plant. It is made up of thousands upon thousands of different chemical components. If we had an unlimited budget and the best analytical capacity possible, we could isolate and identify each and every chemical that comprises ‘the carrot’. It would make a very long list indeed. The list, however, would not completely match the list of required substances for humans. In order for humans to remain healthy, and support growth and development when necessary, repair tissues, provide protection and all the other requirements for life, the elements for humans need to be provided, not carrots. Carrots are considered healthy foods, but a diet that contained only carrots would quickly lead to ill health and an early demise.

The same can be said of every other item we use for food. We could develop the list for potatoes, beef, milk, soy beans – every common plant and animal substance we use for food. Not one of these ‘foods’ would, by itself, match all the human needs. In order to provide humans with all the required substances – vitamins, minerals, trace elements, essential amino acids and essential fatty acids – the nutrients, we have to mix and match from the available lists to match our requirements in both quality and quantity.
Each of the lists represents the chemical components of the food item. Regardless of whether the food was grown locally or in a remote part of the world, whether it was grown organically’ or with the aid of technology, or frozen, canned or dehydrated, the list is still an inventory of chemicals. They are not necessarily chemicals added by the food industry. They are the chemicals required to be a carrot, potato or whatever. Some of those chemicals are useful for our nutrition, but most are not and some are
The Pharmacist The Pharmacist ?? even harmful. It can’t be avoided. It is true of every food. They only way to provide a healthy diet is to combine foods to provide all the essential nutrients and do it from a varied selection so that the good stuff is available in necessary quantities and the bad stuff is kept to low enough levels that our physiology can cope with them.
Not many people select their dinner choices on the basis of nutrient need; nevertheless, even if we don’t know whether our food has enough selenium today, as an example, we still require selenium. It is the same selenium that can be provided as an isolated component in a nutritional supplement. Under ordinary conditions, supplements may not be necessary. When people eat a varied, mixed diet, the ordinary foods will supply the nutrients needed. Under conditions of food restriction, however, as would be common in a weight reduction diet,
the nutrients will not all be there in enough quantity. The nutrient density in common foods makes it impossible to construct a nutrient complete diet with total calorie intake below 1,200. To accomplish this at 1,200 calories requires a computer and the necessity to consume some specific foods not usually found on family menus in the UK.
The editor of one of the glossy slimming magazines once argued that the only nutrients of concern were a short list of vitamins for which a daily intake has been widely published. Regardless of that ill-informed position, the human body will be compromised if not supplied with all the essential nutrients. Supplementation is almost always required during weight reduction or the dieter will be malnourished. It is the lack of available nutrients in restricted weight reduction diets that has led to the myth that a low calorie intake is hazardous.
The idea that extra calories are required during weight reduction can readily be seen as ludicrous when you consider that the one item the obese patient has in store in great excess is calories. The great bulk of extra fat is a massive store of extra calories: 35,000 calories are available from each stone of extra fat weight. The reason dieters were compromised was because they were depleted in essential nutrients. Provide all the essential nutrients and exogenous calories are unnecessary. The only calories required are the calories provided by the
essential nutrients – primarily the essential amino acids and the essential fatty acids. Provide the nutrients and the dieter will remain perfectly healthy as long as there is a reserve of fat. In fact, if the nutrient content provided is complete quantitatively as well as qualitatively, the dieter will be healthier whilst dieting than at any time in the past.
What is a ‘healthy’ degree of weight loss?
Weight loss is important if weight is in excess. It is possible to debate the value of weight loss for cosmetic reasons, although one should not really devalue the quality of life issues associated with even a minimum amount of excess weight in our modern society. Far more important to health professionals, however, is the understanding that excess weight is a major health hazard. The precipitous increase in type 2 diabetes is a direct result of the pandemic of overweight and obesity. Excess weight is a cause of insulin resistance and if chronic will often lead to diabetes. Up to 80 per cent of people with type 2 diabetes will die from cardiovascular disease. It has become fashionable in recent years to denigrate BMI in favour of other simpler measures. Although calculating BMI is a challenge, it is valid. BMI risks were derived from a massive database by life insurance companies, who will not risk their money when BMI exceeds critical values. The negative consequences of elevated BMI begin even within the so-called normal range and rise exponentially into overweight and obesity. And it is misleading to believe that only excess fat weight is detrimental. The facts prove otherwise. Massive excess weight of muscle is as risky to health as excess fat. Professional athletes are not especially long-lived; in fact, the converse is usually true. The healthy range of weight to attain is within the normal BMI range of 20–25, regardless of the pre-diet weight. Having said that, however, every pound of weight lost reduces the medical risk and therefore although it may not always be possible to reach the ideal, it is still worth going part way. It is time to stop looking for ways to violate the natural laws. Calories count. The number of calories used by the body has to be matched with the calories eaten for weight to be stable. Eat in excess, regardless of whether the calories are carbohydrate, fat, protein or alcohol, and weight will be gained. Eat fewer calories and weight will be lost. That is fewer calories than are used, not just fewer calories than normally eaten. It appears to be widely believed that reducing intake by 200 calories a day will result in more than 20 pounds of weight loss in a year.
Obese people are eating hundreds if not thousands of excess calories daily. Reducing this excess by a few hundred calories may slow the weight gain a little, but will certainly not cause weight loss. To lose weight in a realistic time frame, it is essential to reduce the calorie intake as much as is consistent with a complete supply of nutrients. To lose weight it is necessary to eat less. The value of exercise in weight management is seriously over-rated. To use up the calories in an average size chocolate bar, it is necessary to run about three miles (without a calorie laden sports drink).
If we are to really deal with the plague of obesity, it is time to go back to fundamental physiology and stop looking for scapegoats to blame and wishful thinking for miracle solutions.

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MANAGING OBESITY BY CHALLENGING ADDICTION

Obesity has been linked to addiction.

What does this mean for the future of weight management?

Weight loss by total food replacement (the elimination of all food from the diet) is seen by some as a draconian and unnecessary approach to the management of obesity. When trying to devise a successful weight loss programme, the optimum approach would appear to be fairly straightforward simply reduce the daily caloric intake to a point below the level of calorie utilisation. In layman’s terms. just eat less. Indeed, there are many different approaches currently available, all based around the notion of eating less: low carb, low fat, calorie counting, behaviour modification (smaller plates) etc, not to mention the plethora of meal replacement programmes in which a small amount of non-formula foods may be consumed. Why then, would anyone need to use a total food replacement formula (very low calorie diet) in order to lose weight?

It is true that each of the available approaches to calorie restriction can have successful outcomes, even in cases where the logic of a diet plan is spurious or medically dubious, or possibly even in violation of the laws of thermodynamics. Whatever the given approach of a specific diet plan might be, it will Lead to weight loss if it reduces a dieter’s daily calorie intake to a point below the body’s daily requirement.

Unfortunately, nothing in life is ever that simple. Despite a bewildering selection of diet programmes, self-help books, drugs, even surgical interventions, the increase in overweight and obesity continues almost unabated. Weight regain is virtually universal regardless of the method of weight loss or the will of the dieter. Even post-surgical weight regain remains one of the bewildering frustrations of the field. The consequences of relentless gain of weight, however, in terms of medical co-morbidities, healthcare costs and personal quality of Life, make it necessary to find answers.

Obesity and addiction

The solution to obesity should be trivial, as we have already seen. All dieters have to do is just eat Less.

In addition, many people can and do control their eating behaviour and never appear to be in danger of escalation into obesity.

For those who do become obese however, their food behaviour often displays the compulsions and cravings of an addiction. Indeed, it is when food consumption is put into the context of other addictive behaviours that the nature of the problem becomes clear. The link between addiction and obesity 15 even being exploited in the search for drugs to combat obesity, as can be seen in the 30 July 2010 report in The Lancet on the use of naitrexone in conjunction with bupropion as a weight loss treatment.

How robust is the parallel between drug addiction and obesity, and are there insights from the research into addiction that can guide our treatment of overweight? Not all people who are exposed to habit-forming drugs become addicted, just as not all people exposed to high-fat, high-calorie foods become obese. Vast numbers of people consume moderate amounts of alcohol and do not advance to alcoholism. Many people are able to stop smoking as they take on board the health consequences of continuing.

Drugs and food appear to activate common reward circuitry in the brain. The brain naturally produces opiates: drug-like chemicals that cause pleasure sensations and are linked to addictions. Animal studies show that these chemicals can be a trigger for sweet, fatty cravings. And consuming such foods make the brain produce even more of the chemicals (as shown, for example, in studies of rats fed chocolate milk). When the brain’s normal opiate production was blocked, rats chose their normal feed over previously tempting sweets.

Drewnowski tested this approach on 41 women (bingers and normal eaters). They were offered their favourite foods. from pretzels and jelly beans to chocolate chip cookies and chocolate ice cream. Half received injections of naloxone, a drug used to treat heroin overdose because it blocks brain opiate receptors. The rest were given a placebo of saline.

Naloxone made the bingers eat considerably less – 160 fewer calories per meal, as Drewlowski reported in the American journal of C!nicol Nutrition. Their chocolate consumption dropped in favour of lower fat foods like popcorn. When asked to rate their favourite foods again, chocolate was rated lower than before. Significantly however, the non-bingers weren’t affected, a finding that might limit the widespread efficacy of the drug combination referred to above. If a person’s obesity is related to compulsive behaviour then this research is very encouraging. For others, however, its effectiveness will be extremely limited. In other words, it may only help those patients it can help.

If we accept a component of addiction in food abuse and ultimately obesity, then we need to recognise that the most powerful long term treatment for addictions is complete abstinence from the addictive substance. A reformed smoker is someone who does not smoke. A reformed alcoholic is someone who does not drink.

Alcoholics note that it is easier to draw a line between zero drinks and one drink, than between the first and second or even the sixth and seventh. There is an exact parallel with seriously overweight people: the introduction of almost any food can trigger the need for substantial food consumption. Unfortunately for the overweight, total abstinence from food is generally not considered feasible or even survivable. As a result, this most powerful tool for the control of food abuse is usually overlooked.

From a biological point of view, however, it is important to recognise that the human body does not survive on food, it Survives on nutrition. We require a constant supply of a very specific list of chemicals (nutrients) to sustain ourselves. These chemicals are typically ingested in the food we eat. Because there is no single food that exactly matches the nutritional needs of a human being, it is important that we receive our nutrition from a diverse range of foods. For an addict who abuses food, this presents a serious problem one that the mantra ‘just eat less’ completely fails to address.

Total food replacement programmes

The advantage of a total food replacement programme is that nutrition is provided by an engineered formula that is nutritionally complete. allowing the dieter to remove the addictive substance (food) from his of her fife while the weight is lost. The value of a total food replacement formula programme in the treatment of overweight and obesity should now be obvious. Total food replacement is the only means by which those who are subject to food abuse may avoid the addictive stimulus that perpetuates their weight problem.

This begs the question of how to proceed once the excess weight has been lost. Although the smoker should not return to cigarettes, and the alcoholic should not begin drinking again, the idea of avoiding traditional foods for life is a disturbing prospect, and one that no one would actually promote. The concept of permanently denying the pleasures of the table is unlikely even for the most food-averted of the population: itis inconceivable for the food addicted. There will inevitably be a food future, with the possibility (even probability) of weight regain. The availability of total food replacement formulas for future weight correction is likely the factor that protects against addiction transfer, an overwhelming and destructive consequence of weight reduction surgery.

Addiction transfer is a worrying and increasingly reported after-effect of bariatric surgery, as the loss of weight apparently does nothing to alleviate the addictive behaviour. Up to BO per cent of post surgical patients are reported to be transferring their addiction to other quarters (alcohol, gambling, promiscuous behaviour etc) to the point of self destruction. Addiction transfer appears to have a neurological basis, as research suggests that the same biochemical processes are at work in multiple types of impulse-control disorders. Each seems to trigger the same reward sites in the brain, resulting in cravings that are difficult to resist.

Weight loss with very low calorie diets has a clear advantage. When used strictly. ketogenic total food replacement diets are not perceived by the body as a deprivation condition requiring an alternative pleasurable stimulus which can lead to addiction transfer. Once in ‘ketosis’, a high percentage of patients report a mild euphoria or at least a sense of comfort and well being. VLCDs are rapidly being recognised as perhaps the only weight loss method that engenders the many health benefits of weight 1055 and crucially leaves the patient physically and psychologically healthy afterwards.

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