In 2016, a study came out indicating that contestants on the popular weight loss show The Biggest Loser had alarmingly slow metabolisms after losing a large amount of weight at a rapid pace. One man, for example, had to eat 800 fewer calories per day than the average man his size in order to maintain his weight.
But a new study provides some hope in the quest to truly understand how weight loss and maintenance actually work: When researchers caught up with Biggest Loser contestants six years and 30 weeks after their run on the show ended, they found that those who exercised an average of 80 minutes per day were able to maintain their weight more easily than those who didn't. While this is more exercise than the CDC recommends for longevity (150 minutes per week), there's no question that it's a step in the right direction.
Interestingly, the conversation surrounding fitness in recent years indicates that weight loss has practically nothing to do with regular movement and everything to do with food. So where does exercise fit into the weight loss puzzle?