β-Hydroxy β-Methylbutyrate (HMB)
A metabolite of leucine with anti-catabolic properties
Amino acids
Essential amino acids
Research: Extensive
Scientific Name
β-Hydroxy β-Methylbutyrate
Classifications
Function:
anti-catabolic
Source:
leucine-breakdown
Type:
leucine-metabolite
Benefits
- Supports muscle protein synthesis
- Promotes muscle recovery after exercise
- May help preserve lean muscle mass
- Supports metabolic health
- Functions as anti-caking agent in supplements
- May support blood sugar regulation
Specific Properties
- Derived from approximately 5% of leucine metabolism
- Helps prevent muscle breakdown
- May be more effective than leucine for certain goals
- Particularly beneficial during caloric restriction
- Used in body composition supplements
- Typically requires 3g daily for optimal effects
- Works through different pathway than creatine
Safety Notes
Generally recognized as safe when used as directed. Well-tolerated even at higher doses. May cause mild digestive discomfort in some individuals. Those with maple syrup urine disease should avoid leucine supplementation.
Related Products
Preparation Form
β-Hydroxy β-Methylbutyrate (HMB)
A preparation of Leucine Metabolites
Preparations of β-Hydroxy β-Methylbutyrate (HMB)
HMB Calcium
The calcium salt form of HMB, most commonly used in supplements
Research: Extensive
Most stable and researched form
+4 more properties
HMB Free Acid
The free acid form of HMB with potentially faster absorption
Research: Moderate
Faster absorption than calcium salt
+4 more properties