Personal anecdotes pervert common sense on a regular basis.
Take my family. Luckily we haven’t done a whole lot of travelling around in the close to two hundred years we’ve (documented history of my direct family line) been in the US. We’ve always been around the same height 6ft +/- 3inches and we have eaten just about everything. My uncles are very resource challenged and thus they eat very cheap (and carb-centric foods.) They are healthy and lean, though my father tends toward the thicker side.
My great-grandfather was full-blood cherokee, he married the first white person in my family in almost a hundred years. We learned at a very early age how to hunt and forage for subsistence. We would take month-long outings with zero food and live off of what we could catch/find in NE Oklahoma. Rabbit, crow, squirrel, possum, deer, crappie, bass, catfish, and sunfish/perch were all protein sources that could be had with minimal knowledge and training with primitive weapons or tools. Mostly spears, stones, or bone hooks. Acorn bread, mulberries, blackberries, persimmons(in the fall), and various other plant foods were easy to find.
I never lost much weight while on our foraging camp experiences. Including once when my 3 brothers and I went out for 2.5months w/o provisions.
I always came back leaner and stronger. If you spend most of the day killing the food for the next couple of days then you get to lay back relax and make some dried/smoked meats. Then you do stupid things like rock lifting and throwing and various kinds of wrestling. Oddly enough the same sort of sport that is common in primitive cultures throughout the globe.
So don’t think that primitive means small, starving, and waifish. They could’ve been mean, big muthas… esp depending on which tribe they lived in. The cherokee had a much easier life than the one that we created. If you’re ever in NE Oklahoma take a trip out to “Tsa la gi”. This will give you a picture of a culture that was changeless for thousands of years… and probably longer than that. People are ingenious in their ability to adapt to various climes.
I think paleo diets make sense in that processed foods are suicide. Other than that… It’s all just a load of “rearranged prejudices”.
Edward R. Murrow: “A great many people think they are thinking when they are really rearranging their prejudices.”