To begin with some initial points. First the eating plan I follow was first prescribed in 1861 by a Harley Street surgeon Mr William Harvey with great success to a corpulent London undertaker, Mr William Banting. Thus it is more appropriately named the Harvey/Banting diet. In time the term to “bant” was introduced into the English language. It referred to the use of this low carbohydrate diet for weight loss. Indeed “banting” was the standard treatment for weight loss in all the major European and North American medical schools for nearly 100 years until it suddenly went out of fashion after 1959 when it was written out of all the major medical and nutritional textbooks, to be replaced with its polar opposite, the currently popular low fat, high carbohydrate, “heart healthy” diet.
Dr Robert Atkins re-discovered “banting” in 1974 and his name is now incorrectly used as if he was the first to describe this eating plan. The history of Harvey and Banting’s original contribution was re-discovered by Gary Taubes and is described in Taubes’ momentous books Good Calories, Bad Calories and Why we get fat and what to do about it.
Biological needs
Second the reason why this eating plan has been so extraordinarily effective in my case is because it matches precisely my particular biological needs, perhaps because like Mr Banting, my lineage is from England. In brief I inherited from my father and his lineage, a predisposition to develop adult-onset diabetes because I am what is known as “carbohydrate resistant” (CR) and hence “pre-diabetic”. My biology is such that I am unable effectively to clear from my bloodstream, the breakdown product of ingested carbohydrate, glucose. As a result my pancreas must over-secrete the hormone, insulin, one of whose normal functions is to direct the glucose from the bloodstream into the liver and muscles.
But instead, in my case, under the action of insulin most of the carbohydrate that I ingest is directed into my fat cells where it contributes to progressive weight gain, continual hunger, lethargy and, in time, pancreatic failure and the onset of the irreversible and universally fatal condition, adult-onset diabetes. I am as certain as I can be that this eating plan is the only effective long-term health solution for anyone who shares this Banting/Noakes biology.
The yet to be answered question is: How many South Africans who are unhappy with the effects of their dietary choices on their bodies, share this same biology? If it is a majority, then there are many, many South Africans who will benefit from “banting”. If it is a minority, then relatively few will benefit. Since most South Africans are already eating diets high in carbohydrates, especially those that are refined, my bias is to believe that many might benefit from this eating plan.
Eating plan for life
The third point is that this is not a diet, it is an eating plan for life – it is a life style, it is a new eating behaviour. This is not the way to go for anyone who wishes a quick fix to lose weight and to improve their health by changing their eating patterns for as short a time as possible. Once you “bant”, you have to stick with it for life. Because those who successfully lose weight on this eating pattern will regain that weight and more within a short time of going back to eating the way they did before – that is, returning to eat the foods that precipitated the problem in the first place.
The point is that the metabolic abnormality (CR) driving the problem is not ever going to normalise regardless of how much weight is lost or even how much exercise is performed. For those of us with CR, our metabolism is the problem and if we want to do the best for our bodies, then we have to change forever the nature of the foods that we eat. But I argue that this change is much easier than most would ever believe. Unfortunately it is also the advice that many dieticians may be scared to prescribe for the reason that they have been taught that high fat, low carbohydrate Banting diets full of “artery-clogging” saturated fats are dangerous. But this is an unsubstantiated dogma that does not stand up to an intelligent and independent interpretation of the complete scientific literature.
So those who are unwilling to commit to a life-long change in their eating behaviours should probably not begin in the first place.
Addiction
For to change one has to rid oneself of an addiction for easily assimilated carbohydrates – an addiction that is at least as powerful as those associated with cigarette consumption and some recreational drugs like heroin. It is not easy to give up addictions. And like all addictions, addicts have to take each moment of their recovery one day at a time. In a sense those of us who are unable to metabolise carbohydrates, are never cured of that addiction. We are always in recovery. We have to take each new day of our cure, one day at a time.
But for those who like me are convinced that they have a really good reason to change (in my case to avoid dying from adult-onset diabetes – the fate that struck my father and his brother) and are prepared to change what we eat for the rest of our lives, then we may be up for the challenge.
The fourth point is that this is not a “fad” diet - the reason why it works so well is because there are solid biological reasons why it must produce a successful outcome if followed faithfully by those with CR.
Anybody on a high protein diet and have you experienced as significant improvement?
Also what do you think of Noakes change of tune.
The sixth point is that many wish to know how this change might affect their athletic abilities since they have been led to believe, not least by my writings in Lore of Running, that without a high carbohydrate intake they will be unable to exercise properly. What I now understand is that carbohydrates are relatively ineffective fuels for those with CR so that there is no risk that the exercise performance of those with CR will be impaired if they cut their carbohydrate intake as have I. Instead I am certain that the less carbohydrate that those with CR ingest (both in training and in racing), the better they will perform.
My experiment has shown me that I can do any amount of exercise I wish without increasing my carbohydrate intake. (I walk for 6 hours on the mountain and race up to 21km without needing any more the 50-75 grams of carbohydrates a day that is already in my diet). We are currently researching a group of serious and some elite athletes who have adopted the Banting diet and who have found that their performances have improved substantially with weight loss and reduction of their carbohydrate intakes both before and during racing. We need to understand why this is possible.
http://www.health24.com/fitness/Diet_Supplements/16-481-512,73175.asp