> there was a guy here on HN just a few days ago who said something I'd never heard before: "after losing 50+ pounds my metabolism is ruined forever, I cannot e

> there was a guy here on HN just a few days ago who said something I'd never heard before: "after losing 50+ pounds my metabolism is ruined forever, I cannot eat more than 1600 calories without gaining weight". I didn't know how it's possible without his body temp being permanently lower than normal. Whether or not your diagnosis is correct, how does that justify YinglingLight's claim (https://news.ycombinator.com/item?id=17910631 https://news.ycombinator.com/item?id=17910631) "I feel hypothyroidism is more prevalent today than at any other point in human history."?