Hydroxy-
Methylbutyrate
A metabolite of leucine, HMB supports muscle preservation, strength, and recovery, especially in physically active and older adults.
Hydroxy-Methylbutyrate (HMB) is a bioactive compound derived from the amino acid leucine, naturally present in trace amounts in some foods and produced in the body. Its supplementation is widely used to aid muscle preservation and enhance physical performance.
Multiple meta-analyses and RCTs support benefits for muscle preservation and strength, especially in physically active and elderly populations, but not all studies show consistent or large effects.
Muscle Preservation and Reduced Protein Breakdown
ModerateHMB supplementation helps minimize muscle protein breakdown, particularly during periods of intensive exercise or caloric deficit.
Enhanced Muscle Strength and Performance
ModerateHMB modestly increases muscle strength and lean body mass, especially in individuals starting resistance training or those in catabolic states.
Support for Aging and Muscle Wasting (Sarcopenia)
ModerateHMB supplementation can attenuate loss of muscle mass and function in older adults, improving physical function and reducing frailty risks.
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