Maximize your workout and show off your best shape! What is HMB? 3000 mg of Ca-HMB per dose 1 month supply Easy to take Maximize your workout and show off your best shape! Hard training is only one side of the picture. You need to be careful if you don't want to lose the work and energy you've already put in. Maximize your performance and get the body you want! Beta-hydroxy beta-methylbutyrate is an organic acid, an amino acid derivative, more specifically the metabolite of L-leucine, which is also produced by the human body.BioTechUSA