No, regaining weight after losing it won't permanently damage your metabolism: New research

MedicalXpress | يون 08, 2026

When it comes to losing weight, the fear of "ruining your metabolism" is widespread. Indeed, many people who have lost weight and then put it back on feel that every failed attempt leaves them worse off than before, with more fat, less muscle, greater hunger, lower energy, and an ever-diminishing ability to lose weight again.