I guess it depends on "where".

The so-called Mediterranean diet, which is the "normal" way of eating in Italy, basically consists of bread/pasta/vegetables and (olive) oil (but is not in any way vegetarian or vegan as eggs/poultry/cheese/fish are also largely present).

Traditionally red meat was eaten once or maybe twice a week.

So, not carnivore and not keto.

Umm, what? The history of humanity is one of agriculture.

Also https://www.scientificamerican.com/article/why-paleo-diet-ha... I quote: Humans come from a fairly generalized line of higher primates, a lineage able to utilize a wide range of plant and animal foods. There is general agreement that the ancestral line (Hominoidea) giving rise to humans was strongly herbivorous (14, 15). Modern human nutritional requirements (eg, the need for a dietary source of vitamin C), features of the modern human gut (haustrated colon), and the modern human pattern of digestive kinetics (similar to that of great apes) suggest an ancestral past in which tropical plant foods formed the basis of the daily diet, with perhaps some opportunistic intake of animal matter.

Going on: Consumption of animal matter to satisfy requirements for protein and many essential micronutrients would free up space in the gut for carbohydrate-rich plant foods and allow for their use as fuel for the increasingly large human brain (14). Because humans initially evolved in Africa, where wild animals generally lack appreciable fat stores (2), it seems clear that they consumed a mixed diet of animal and plant foods, given the apparent limitations of human digestive physiology to secure adequate daily energy from protein sources alone (4).

Whilst early human were not vegan they were hardly mostly carnivores either. Furthermore as stated in both articles basing the diet of modern humans on the one of our ancestors is a mistake!

P.S. I am far from being vegan! Suturday I ate 600g of a delicious cow.

The other article does seem to be in favor of promoting a vegetarian view. But to me it seems incredibly lackluster: https://www.sciencedirect.com/science/article/abs/pii/S08999... To shorten it up: 1) Today we suffer of diet related disease 2) Other great apes are mostly vegetarians 3) Our digestive system is very similar to that of apes result: The recommendation that Americans consume more fresh fruits and vegetables in greater variety appears well supported by data on the diets of free-ranging monkeys and apes.

Previously our differences from apes have been correlated to the fact that we cook food:

https://www.researchgate.net/publication/272419339_Comparati...

Thus, humans are relatively poor among autoenzyme-dependent omnivores in digesting uncooked plant fiber. The human large intestine lies somewhere between that of the pig, a similar omni-vore, and the dog, a carnivore capable of consuming an omnivore diet that has a reduced cecum and short colon.

Also interesting: https://www.journals.uchicago.edu/doi/10.1086/701477

Coding? Programming? Startups? Great discussion.

Then any time HN has a post about the environment, food, health, energy policy, transportation, politics, human rights, etc the comments section is chock full of straight up "a simple google search disproves everything you've said."

This hasn’t been true since the dawn of agriculture. People mostly ate some kind of grain or tuber. Sometimes as gruel/meal, sometimes as bread, sometimes as mash but most people have been peasants since the dawn of farming and peasants eat carbs.