
ScienceSetúbal
When we lose weight, where does the fat go? Most of it leaves through the lungs
ZAP Notícias26 August 2026 at 17:20
A scientific study reveals that during weight loss, most of the fat stored in cells is mobilized to produce energy and ends up leaving the body mainly in the form of carbon dioxide exhaled through the lungs. When the body enters a caloric deficit, it burns more calories than it consumes, and this fat burning releases carbon that is eliminated primarily through breathing.



