I had already talked about it in a previous article, but in the meantime a group of researchers conducted a study on the competitors of The Biggest Loser program , and precisely on the competitors of the eighth edition: thirteen of which (out of the initial fourteen) would gain weight after the program. , and six years later, they would still show problems with slow metabolism and a tendency to gain weight. But that is not all.

Four of the participants gained all the weight, and also gained an uncomfortable extra: as you know, the participants of The Biggest Loser program are obese, often severe obese, rarely just overweight, so gaining weight can have serious health consequences for them. people more than in normal normal weight subjects. The reasons why The Biggest Loser attendees gained ninety percent weight? 
Scientists explained them. Six years after participating in the program, ninety percent of participants still have a lower basal metabolic rate than before the contest: therefore, they tend to put on more weight than when they enrolled in the program, and to maintain their current weight, even if in a condition of obesity, they are forced to eat 800 calories less than before.
So let’s recap: get fat again, but forced to eat less than before to stay obese.
In all the participants, after six years, lower levels of leptin were found: which is absurd, given that they are obese again and leptin is produced by adipose tissue. Yet it is so. Therefore, since leptin regulates appetite and the sense of satiety,they are hungrier than when they started the contest. Of course, this does not mean that all dieters are destined to regain weight: but that how much weight you lose, how you lose it and how long you lose it is essential to avoid regaining the lost weight and falling. victim of metabolic damage.