Why is nutrition and fitness so divisive? My most controversial comment on HN was bringing up that nearly everyone's metabolism is the same. Everyone wants to t

Why is nutrition and fitness so divisive? My most controversial comment on HN was bringing up that nearly everyone's metabolism is the same. Everyone wants to think that obesity is caused by having a slower metabolism. It's not. Every single "buff" person shown in this article, is on steroids. People have a really hard time accepting this, they really want to believe that if you work hard enough, you can do what they do.