Well, the Hunzas eat meat once a year, and consume goat milk somewhat regularly. Otherwise, they eat a vegan diet. The Vivacabambans, and the Abkaisans eat very little meat, I mean a handful of times a year at most. Otherwise, they eat a little milk. None of these people's diets are religiously motivated, that I am aware of. It is simply a frugal use of limited resources. Even if there WERE no indigenous people who ate a vegan diet, that wouldn't really answer the basic question. The basic question is, can it be done on a log term basis, successfully, and the answer is, at the very LEAST, that dropping ones consumption of animal products to less than 10% of one's diet is what gives indigenous peoples the greatest longevity, and that there are people like Gary Null, who has basically been a vegan (except he eats honey) for decades, and still race walks and runs marathons at the highest levels and wins, which he has done for decades. He has been world champion at race walking a number of times. Look at Dave Scott, who won the Iron Man 6 times. He ate no meat.