What you're saying makes no sense without context. You say "we" but someone who's extremely active vs extremely sedentary are going to require different macros to compensate.
You can get energy from fat. No human on hacker news except for elite athletes are running multiple miles per day continuously in the way our ancestors may have. And honestly, you still don't really need sugar for that as your body adapts.
You can get energy from fat. No human on hacker news except for elite athletes are running multiple miles per day continuously in the way our ancestors may have. And honestly, you still don't really need sugar for that as your body adapts.