The prof is getting some what of a bad rep that he's advocating everyone should be wolfing down foods very rich in protein, ignoring the fact that he has repeatedly acknowledged it not for everyone. Not for everyone However those who can metabolise carbohydrates efficiently and who have always been lean despite eating a high carbohydrate diet may not benefit in any way from this eating plan. I would not advise any athlete who is lean and quite happy with his or her weight and performances to change to this eating plan since it might not make a difference and might even be detrimental. On the other hand I have noticed that there are a large number of slower finishers in the Argus Cycle Tour and in the Comrades Marathon who are, to put it scientifically, either overweight - body mass index (BMI) greater than 25kg/m2 or frankly obese (BMI greater than 30kg/m2). The point is that the BMI is an excellent proxy for whether or not one is eating the right amount of energy each day. If the BMI is greater than 25kg/m2 in males (somewhat less for females), one is eating more than one should. For there is also evidence that, within reason, the less one eats, the more likely it is that one will stay healthy for longer. Which raises the question: Why do those with BMIs greater than 25kg/m2 continue to eat too much even if they are exercising enough to compete in the Argus and the Comrades? The answer in my case was clear. It was not that I was gluttonous or lazy – the more usual explanation. It was because my brain was receiving false signals – based on my CR and the addictive effect of carbohydrates - about how much I really needed to eat. Once I corrected the signalling to my brain by adopting a high fat, low carbohydrate diet, I lost the urge to overeat.
