Think you can get more efficient the more accustomed you are to ketosis, and I think *some* people have probably benefitted a lot from carnivore, but the obesity epidemic is recent, and 100 years ago they had access to plenty of fruit.

Think diet is really complex, and you’re gonna steer yourself off a cliff if you try to use “studies show” and “science says” to decide what to eat. First principles IMO are much better heuristics when you’re dealing with complex systems.