Performance
HMB Free Acid
Also known as: HMB-FA, Beta-hydroxy beta-methylbutyrate free acid, BetaTOR
B
Evidence
Fast-absorbing form of HMB (beta-hydroxy beta-methylbutyrate). Reduces muscle breakdown and supports recovery, especially during caloric deficit or intense training.
Primary uses
- Muscle preservation
- Recovery
- Reduced breakdown
- Strength
How it works
- Leucine metabolite
- Reduces muscle protein breakdown
- Faster absorption than HMB-Ca
- Supports recovery
Dosage
- Typical range
- 3g daily in divided doses
- Timing
- 30-60 min pre-workout and with meals
- With food
- Can be taken without for faster absorption
- Duration
- Benefits during intense training or deficit
- Special populations
- Cutting phases, intense training, older athletes
Forms
- Gel capsule
- Liquid
Safety
Common side effects
- Well tolerated
Contraindications
- None
Evidence notes
Better absorption than HMB-Ca, clinical support for muscle preservation
Grade B: Some human trials support key claims; further confirmation needed.
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