Betagen - Orange by EAS

 What does HMB do?

HMB (beta hydroxy-beta-methylbutyrate) is a metabolite of the essential amino acid leucine (one of the branched-chain amino acids).

As with other amino acid-related substances, HMB appears to play a role in the synthesis of protein—including the protein that builds new muscle tissue.

Animal research suggests that HMB may improve the growth of lean muscle tissue,¹ but only preliminary and limited research in humans supports the potential link between HMB and enhanced muscle building² or endurance performance³ in athletes. One study involving people involved in a regular weight-lifting program found that supplements of 3 grams per day of HMB, compared with no supplements, contributed to greater gains of muscle mass and strength over the seven-week study.⁴ However, a double-blind, controlled trial found no effect of 3 grams per day of HMB for four weeks on body composition or exercise performance in 41 weight-training football players.^{5 6}