This could explain why fruits and vegetables are not only good for us but are vital to our survival. “For this reason, another approach that might improve our understanding of the best dietary practices for modern humans is to focus attention not on the past but rather on the here and now that is, on study of the foods eaten by the closest living relatives of modern humans,” given the bulk of our ancestral diets and “the lack of evidence supporting any notable diet-related changes in human nutrient requirements, metabolism, or digestive physiology” compared to our fellow great apes. So, What Is the “Natural” Human Diet?ĭuring our truly formative years, which one might say was the first 90 percent of our existence, our nutritional requirements reflected an ancestral past in which we ate mostly leaves, flowers, and fruits, with some bugs thrown in, thanks to wormy apples, to get our vitamin B12. Two is the paleo view “that 10,000 years is a blink of an evolutionary eye, and that humans are adapted to paleolithic diets with a lot of lean meat,” but why stop there? The third theory is that the last 200,000 years “is a minute of the evolutionary year” when we were mostly Stone Age humans and represents just the last 1 percent of the roughly 20 million years we’ve been evolving since our common great ape ancestor. ![]() One is that humans have become adapted to grains and other products of the agricultural revolution over the last 10,000 years. There are three broad theories about evolution and food.
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