Can you elaborate? If someone forces themselves to eat X calories, where X is below their maintenance calories, they will lose weight. This is both obvious fro

Can you elaborate? If someone forces themselves to eat X calories, where X is below their maintenance calories, they will lose weight. This is both obvious from understanding the mechanics, but also proven through many actual studies. I'm not sure if you agree with that or not, but if you do, then what do you mean that CICO doesn't explain the phenomenon?