Personally, I think it's the other way around - we evolved into being in ketosis a lot, and we only need carb intake to fuel record athletic pursuits (though even that is being challenged more and more).
Other carnivorous animals eat way more muscle meat and produce glucose via gluconeogenesis. But we didn't evolve from cats. We evolved from apes.
There are no carnivorous apes eating a high-protein diet, they mostly eat fiber which they cannot digest. They then let the bacteria in their guts transform the fiber into short-chained, saturated fatty acids. That's how they get 70%+ of their energy.
We basically hijacked that system by "inventing" ketosis. And we lost our expansive guts in the process, so we can no longer make use of that fiber. That's why we can't munch on leaves and bark like gorillas and chimpanzees do. (Note that apes CAN eat meat, but they typically get less than 5-10% of their caloric intake from it, only eating small animals that are both lean and not a very good return on investment energy wise compared to large ruminant animals.)
Amber O'Hearn has a whole talk about it that I think is pretty great, IIRC it's called Lipovore.
Also I guess I already won that 98.2kg bet, unless you meant "not including water weight" ;)
Personally, I think it's the other way around - we evolved into being in ketosis a lot, and we only need carb intake to fuel record athletic pursuits (though even that is being challenged more and more).
Other carnivorous animals eat way more muscle meat and produce glucose via gluconeogenesis. But we didn't evolve from cats. We evolved from apes.
There are no carnivorous apes eating a high-protein diet, they mostly eat fiber which they cannot digest. They then let the bacteria in their guts transform the fiber into short-chained, saturated fatty acids. That's how they get 70%+ of their energy.
We basically hijacked that system by "inventing" ketosis. And we lost our expansive guts in the process, so we can no longer make use of that fiber. That's why we can't munch on leaves and bark like gorillas and chimpanzees do. (Note that apes CAN eat meat, but they typically get less than 5-10% of their caloric intake from it, only eating small animals that are both lean and not a very good return on investment energy wise compared to large ruminant animals.)
Amber O'Hearn has a whole talk about it that I think is pretty great, IIRC it's called Lipovore.