About HMB

Metabolite of leucine studied for muscle preservation.

Compare All Forms

1 form

Compare supplement forms of HMB by absorption quality and what your body actually gets from each:

High Moderate Low
Form Absorption Steps to absorb Notes Action
HMB (Beta-Hydroxy Beta-Methylbutyrate)
  • Label category: Synthetic
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Also appears on labels as

Additional names seen on supplement labels for forms of this ingredient (beyond the main aliases above).

HMB

Type: Amino Acids

Building blocks of proteins. Essential amino acids must be obtained from diet, while non-essential can be synthesized by the body.

Absorption: Amino acids are generally well-absorbed. Some forms (like citrulline) are more effective than others (like arginine).

Interactions: Generally safe but high doses can cause digestive issues. Some amino acids can affect neurotransmitter levels.

Potential Benefits

Benefits associated with HMB forms:

Potential Side Effects

Side effects associated with HMB forms:

What does the research say?

Mixed results; possible benefit in beginners and catabolic states.