> No one is properly adapted, that why milk consumption is associated with shorter lifespan and some diseases. Adaptation to a lifestyle dependent on milk and

> No one is properly adapted, that why milk consumption is associated with shorter lifespan and some diseases. Adaptation to a lifestyle dependent on milk and it's derivatives was a huge inflection point in the evolution of Europeans. It gave the bearers of this adaptation a tremendous advantage over people who lacked it and consequently spread rapidly. If I were you, I would be very suspicious about diet advice derived from epidemiological studies, since those studies can only ever infer correlation, not causation, and are likely mostly useless as a result of this shortcoming. This article by Gary Taubes goes into great detail about why (and, seriously, this is one of the most important things I've ever read): http://www.nytimes.com/2007/09/16/magazine/16epidemiology-t.html http://www.nytimes.com/2007/09/16/magazine/16epidemiology-t.... > Do yo mean to only drink milk (or eat meat)? Yes. See the Maasai (huge milk consumption) and Inuit (who historically ate a diet consisting entirely of meat from sea mammals). If you're interested about diet and how it relates to health, Good Calories, Bad Calories by Gary Taubes is an amazing book, which is, on the surface, about how dietary fat and carbohydrates affect health, but is really a deep dive into how we ascertain knowledge and how the political process of scientific recommendations gets corrupted by human shortcomings.