A friend told me about Arthur De Vany and his evolutionary fitness theory. After briefly checking out De Vany's blog and some related links, I must admit I am truly intrigued. The author is 68, but his body has a biological age of 32 as determined by some research institute.
The Big Idea
Your brain and body are evolved for life in 40,000 BC; take care of the hunter gatherer body and mind that you carry in that pin-striped suit.
It begins on the premise that our bodies and minds are adapted to an ancient environment that passed more than 10,000 years ago. We evolved as hunter-gatherers over at least three million years and that lifeway shapes our attributes, behaviors, and capabilities as human beings. It is by understanding the hunter-gatherer adaptation and incorporating the activity and eating patterns of our ancestral lifeway with the findings of the best of modern science that we can live a natural and healthy life in a modern world that is very different from the one in which human beings evolved.
The Evolutionary Fitness Diet is simple and nutritious. You eat nutritionly dense foods, that are low in calories and high in fiber and antioxidants. It will end your carbohydrate cravings and raise your energy level which is depleted by the blood sugar/insulin rebound and high serotonin levels promoted by high calorie foods. The diet is high in natural plant fiber, phenols, flavonoids, and phytochemicals, nature's own cancer-fighting and antioxidant compounds that coevolved with human beings and were always an important part of the hominid diet before the agricultural and industrial revolutions. Also, we are to drop the grains, cereals and bread, as it will shift the Ph balance of your food from acidic (grains contain a lot of phytic acid) toward a more neutral and even slightly alkaline state. This will permit better mineral metabolism, adding density to your skeletal mass; it will also help your kids grow properly.