Nobody in this thread is suggesting a vegan diet, or suggesting that our ancestors were vegan. I actually didn't mention vegetables at all in my comment. If you

Nobody in this thread is suggesting a vegan diet, or suggesting that our ancestors were vegan. I actually didn't mention vegetables at all in my comment. If you look at what I wrote, I suggested that ancient humans were primarily eating high-fat, high-protein, foods like seeds, nuts, insects, and small game. Here's a citation: https://www.ncbi.nlm.nih.gov/books/NBK482457/ https://www.ncbi.nlm.nih.gov/books/NBK482457/ Moreover, this makes sense. Hunter-gatherer life was not easy, and ancient humans scraped by on what they could get. This likely entailed eating a lot of fat and protein sources that today are considered distasteful, like insects, rodents, lizards, and organ meats. There's a lot of keto/paleo/primal bro-science floating around that people use as a post-hoc justification for a diet that is destroying the planet. But if you really want to live like our ancestors, you should be eating grubs, rats, roots, seeds, and tripe in addition to the occasional steak.