HMB, or Calcium Beta-Hydroxy Beta-Methylbutyrate, or ?-hydroxy ?-methylbutyrate, is a metabolite of the branched-chain amino acid leucine and is synthesized in the human body as part of protein synthesis.
HMB is found in small quantities in grapefruit, alfalfa, and catfish. The human body produces about 0.2 to 0.4 grams per day, and standard doses in research studies have been 1.5 to 3.0 grams per day, usually divided into two doses.
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HMB is created during the metabolism of leucine
Aids the protein synthesis of amino acid leucine
Protein is made up of amino acids, which are the building blocks of muscle. Protein contributes to the growth and maintenance of muscle mass. HMB is created when the amino acid leucine is metabolised.