métabolisme

/metabɔlism/

nounmasculine

metabolism (the set of chemical processes in an organism that maintain life)

metabolic rate; how quickly the body burns calories (common/colloquial usage)

J'ai la chance d'avoir un métabolisme super rapide, donc je peux manger presque n'importe quoi sans prendre de poids.

I'm lucky to have a very fast metabolism, so I can eat almost anything without gaining weight.