I love watching weightloss challenges, so I watch people go through these crazy transformations but often times after I hear that the participants will gain a significant portion, if not all, of the weight back. Why is that? Is it diet? Biology?
In: Biology
They did a study on Biggest Loser participants and found that their metabolisms were slowed down, presumably from the extreme diet. https://www.scientificamerican.com/article/6-years-after-the-biggest-loser-metabolism-is-slower-and-weight-is-back-up/
There have been similar studies of fat people who have lost a lot of weight. They’re not the same as someone who was always at that lower weight. Their body is fighting to gain weight and keeps them constantly feeling very hungry and tired until they gain back all of the weight they lost.
Latest Answers