Can someone explain why ketosis is the secondary energy system in the body and not the primary?
Our bodies are primate bodies. Primates are frugavorian omnivores (get most calories from fruit, and eat very little animal tissue (mostly insects)). Fruit contain mostly carbs: short carbs a.k.a. sugars. We're optimized for eating lots of sugar. Primates have a hard time producing fat from carbs (a process called lipogenesis), just a few calorie% per day. This, combined with the tiny bits of fat in fruits/insects, w…
We aren't anywhere close to redesigning ourselves to change things around but it is important to realize that "good" and "bad" aren't intrinsic but contextual in medicine, the dose makes the poison and all.