Also, never ever ever do they mention anything about human genetics. There are people who carry more hunter-gatherer traits than others. So who is this diet really for?

Genetics matter. I am a FUT2 non-secretor and this effects my gut health tremendously. I had IBD-D for years before I found this out. Before then if I took any pre or pro-biotics it was a nightmare, but that was supposed to be the healthy thing to do.

So sorry, but I do not listen to any nutritional research anymore that over generalizes a genetically diverse population.

https://www.nature.com/articles/ismej201464

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9866411/