The Mythology: Anticatabolic supercompound, increases strength and muscle mass. Decreases fat.
The Truth: Noobs may benefit with minor strength gains in the lower body. Body comp changes mostly a pipe dream.
Research: HMB or beta-hydroxy beta-methylbutyrate is a by-product of the essential amino acid leucine, proposed to influence muscle protein metabolism and cell membrane integrity.
HMB is claimed to influence strength and lean body mass1.2. by acting as an anticatabolic agent, minimizing protein breakdown and damage to cells that may occur with intense exercise. Research shows that previously untrained men may benefit from HMB supplementation, in terms of minor gains in strength.5.6. Evidence for gains in lean mass or fat loss are less awesome both in trained and untrained individuals with more nays that yeas.
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