Sublime

norm. The idea that natural fat sources could be toxic to humans was a false and contrived notion with no basis in evolutionary or physiological science.

Beyond its role in building muscle, protein may have beneficial effects on our metabolism. One study found that giving elderly people supplements containing essential amino acids (that is, mimicking some effects of increasing dietary protein) lowered their levels of liver fat and circulating triglycerides.

The empowering news here is that we can mimic many of these benefits in part by keeping tight reins on our bodies’ production of insulin. We can do this by engaging in brief periods of fasting (which I will introduce in chapter 6), avoiding rapidly digesting sugars, and demoting starches (especially processed grains) from mainstays in our diets to

replaced with a new section entitled “Protein, Fat, and Carbohydrate.” Interested readers should refer to The Metabolic Typing Diet for further elaboration on this fascinating and emerging area of nutritional science.

All animals (including humans) can age more slowly and achieve their maximal lifespans when they eat a diet that avoids the overconsumption of macronutrients and supplies adequate micronutrient exposure. A Nutritarian diet includes a wide variety of micronutrient-rich foods and avoids foods that are not nutritious. Excess fat, excess carbohydrates,