HMB 250 g is a beta-hydroxy-beta-methylbutyrate (HMB) supplement, a metabolite of the essential amino acid L-Leucine, essential for athletes and bodybuilders. Its main function is to prevent muscle catabolism, acting as an anti-catabolic agent. An effective dose of 3 grams per day is recommended, divided into 2 or 3 servings, helps maintain muscle mass and accelerates recovery. Ideal for strength athletes and those needing to protect lean mass gains.