Sci-Fit HMB (Beta-Hydroxy-Beta-Methylbutyrate) is found naturally in living matter as a metabolite of the essential amino acid L-leucine. There is preliminary evidence suggesting HMB may be an anticatabolic and immunomodulatory substance. In one study of HMB, the supplemented subjects receiving 1.5 grams or 3 grams daily were able to lift more weight than the unsupplemented control group. The researchers concluded that either dose of HMB “can partly prevent exercise induced proteolysis and/or muscle damage and result in larger gains in muscle function associated with resistance training.” HMB is a proven anticatabolic dietary supplement. HMB has been shown in controlled studies (with athletes performing regular resistance training) that when taken at 3 grams per day, produce a 300% greater increase in lean mass gain. HMB has a pronounced effect on decreasing the protein breakdown induced by resistance training along with increasing nitrogen retention by the body, resulting in a subsequent increase in lean muscle mass and strength.

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