Actually the big evolutionary advantage of humans is that they can thrive on a wide range different diets. Unlike other animals we can almost eat everything.
We are not the only omnivores, but I think it is an underappreciated trait of humans.
I believe that a lot is written about what is a healthy diet, but in reality, as long as there is no obvious excess or deficiency, and you don't have a specific disease, then any diet can be healthy. Vegan, carnivore, paleo, keto, kosher, whatever... even junk food. The human digestive system is very good at working with anything you throw at it.
The only thing is the less varied the diet, the more you need to care about potential deficiencies. Usually, there is a way, but unlike with a varied diet where you can rely on random sampling, you may need to be more explicit.
The psychological side is quite a bit more complex though. While a healthy diet is almost always possible from the point of view of our guts, we may not want to, because our natural incentives may not align with what modern society offers. What used to be rare is now abundant and easily accessible.
"healthy" in that "you won't die" -- not necessarily "healthy" as in "ideal for maintaining peak health". That's probably a bad comparison... But I'm not sure that you can count out the importance of the intestinal microbiome. It's not just vitamins or metals--one can be deficient in beneficial bacteria as well. These bacteria are why we can "throw anything" at our intestines. That's true until the good bacteria have nothing left to sustain them and die off.
> I believe that a lot is written about what is a healthy diet, but in reality, as long as there is no obvious excess or deficiency, and you don't have a specific disease, then any diet can be healthy.
>carion, most raw meat (if we ate what dogs ate, we'd have constant stomach issues...)
Humans have extremely acidic stomach acid (1.5 - 3.5 pH), close to that of vultures and dogs (1 - 2 pH).
Early humans and their predecessors, were very likely (at least partially) carrion feeders, and consumed raw meat for millions of years before they started cooking.
Yes, early humans were likely carrion feeders among other dietary strategies. Archaeological and anthropological evidence suggests that before developing tools and techniques for hunting, early hominins would have scavenged carcasses left by predators. This behavior would have allowed them to access a high-quality source of nutrients like protein and fat, which are crucial for brain development.
The use of tools made from stones to break open bones for marrow and to possibly butcher animals suggests that early humans exploited carcasses that they found or scavenged from other predators' kills. Marrow and brain tissue, which could be accessed by breaking open bones and skulls, are highly nutritious and would have been valuable food sources for early humans.
Over time, as hominins developed more sophisticated tools and techniques, they likely became more efficient hunters, gradually shifting from scavenging to actively hunting for their food. However, the practice of scavenging would have played a critical role in the dietary habits of early human ancestors and contributed to their evolutionary success.
I believe that a lot is written about what is a healthy diet, but in reality, as long as there is no obvious excess or deficiency, and you don't have a specific disease, then any diet can be healthy. Vegan, carnivore, paleo, keto, kosher, whatever... even junk food. The human digestive system is very good at working with anything you throw at it.
The only thing is the less varied the diet, the more you need to care about potential deficiencies. Usually, there is a way, but unlike with a varied diet where you can rely on random sampling, you may need to be more explicit.
The psychological side is quite a bit more complex though. While a healthy diet is almost always possible from the point of view of our guts, we may not want to, because our natural incentives may not align with what modern society offers. What used to be rare is now abundant and easily accessible.