The "eat raw" part seems at least partially misguided, since our ancestors apparently started cooking the heck out of their environment pretty early, didn't consume much unprocessed dairy until very late, and the raw food they did consume tended to carry less pathogens than modern mass-produced food.
The greatest part of the rest, however, appears to be true. I find I'm feeling much better overall, not worse, if I take the bike somewhere even in uncomfortable weather, and it turns out it's more fun as well, more often than not. Low-processed food makes my digestive system measurably happier, walking lots makes me unreasonably healthier, being among trees and mountains calms me to a crazy degree.
But then we did spend like 98% of our evolutionary history since the last big speciation event as hunter-gatherers, and we gotta be as adapted to that as any critter is to their lifestyle.
At this point I kind of expect to find perversions the social patterns and structures of hunter-gatherer groups embedded in the dark patterns that make social media so insidious, much like exploiting our built-in craving for scarce energy-dense nutrition made Coca Cola etc. the economic giants they are. I just don't know enough about the social structures of the deep past to spot these things yet. There doesn't seem to be a lot of literature on that either, so I'm not sure how I'll get there, but I'd like to.
Totally agree regarding biking, walking, trees, mountains, and will add lakes. Though it does only lightly touch on social structures of traditional societies, you may enjoy reading "The Secret of Our Success: How Culture Is Driving Human Evolution, Domesticating Our Species, and Making Us Smarter" by Joseph Henrich. I also found classic texts of social and political anthropology to be very worthwhile for understanding human societies. Ted Lewellen's "Political Anthropology: An Introduction" is a good starting point.
Cooked food is easier to digest. The discovery of cooking is what allowed early hominids to grow larger brains (which have higher calorie demands) and become modern humans.
> I find I'm feeling much better overall, not worse, if I take the bike somewhere even in uncomfortable weather, and it turns out it's more fun as well, more often than not.
I'm lacking words to describe how I feel reading the same comment from many people online. I too felt weird seeing how much more peaceful and healthier simple bike commute made me. I remember coming home sweaty and running across angry car drivers pissed to wait for 3 seconds more than necessary in the comfort of their seat, while me doing all these efforts .. all calm, even joyful.
Same for food, it's hard to unplug from all sweet processed food, but after a month you realize your body doesn't need it. less but better food, helps sleep too..