have you ever actually tried to read about indian diet on Amazon? ... it's not because they hunt(ed) fish and capybaras that you can make such a claim, go figure

i also tried to find a link for a paper here but it's been a long time but basically the population we have the smallest register of disease is an indian tribe around the coast of South America that mostly has a super high carbohydrate consumption compared to the rest of the world (will edit and comment if i find it)

edit: yeah, doubt i'll find but another counterpoint, go look at the rate of disease of Eskimos... they eat meat only!