HMB (beta-hydroxy beta-methylbutyrate) is a metabolite of the branched chain amino acid, Leucine and plays a role in protein synthesis. It is naturally produced in the human body in low levels, but as a dietary supplement it's said to promote muscle mass and give support to muscle recovery.* Small amounts of HMB are present in foods such as catfish, grapefruit and alfalfa.
Supplementing with HMB can give the body an advantage for recovery by minimizing the amount of protein that is broken down in the muscles after exercise.* The result is that your muscles will be in an anabolic state longer, allowing for more potential muscle growth.*