> Because it still sounds like he only ate twinkies and lost weight. The problem is that nobody can seriously eat only twinkies at a caloric deficit indefinite

> Because it still sounds like he only ate twinkies and lost weight. The problem is that nobody can seriously eat only twinkies at a caloric deficit indefinitely. He was getting his caloric needs from sugar, and he was avoiding weight gain by undereating. If he kept it up for say, a year, he would have experienced all sorts of nasty symptoms– irritability, etc. I'd liken it to staying awake for 3 days. Sure, you can do it, but it's not sustainable.