HMB (Beta-Hydroxy Beta-Methylbutyrate)
Performance
Also known as: Beta-Hydroxy Beta-Methylbutyrate, HMB (β-Hydroxy β-Methylbutyrate), HMB-Ca, HMB-FA, β-Hydroxy β-methylbutyrate
B
Grade B💊 3 g daily in divided doses🎯 3 primary uses🔗 2 synergies⚠️ Review warnings
Levels upFitness+50 pts
Overview
Leucine metabolite that may reduce muscle protein breakdown. Most useful during caloric restriction or for beginners.
Primary Uses
Muscle preservationRecoveryStrength (beginners)
Frequently Asked About HMB (Beta-Hydroxy Beta-Methylbutyrate)
How much HMB (Beta-Hydroxy Beta-Methylbutyrate) should I take?
The typical effective range is 3 g daily in divided doses. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.
When is the best time to take HMB (Beta-Hydroxy Beta-Methylbutyrate)?
Before/after workouts and with meals. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.
Should I take HMB (Beta-Hydroxy Beta-Methylbutyrate) with food?
Optional.
Does HMB (Beta-Hydroxy Beta-Methylbutyrate) interact with medications?
Yes — known interactions include None significant. If you take any prescription medication, talk to your doctor or pharmacist before starting HMB (Beta-Hydroxy Beta-Methylbutyrate).
What does HMB (Beta-Hydroxy Beta-Methylbutyrate) pair well with?
HMB (Beta-Hydroxy Beta-Methylbutyrate) stacks well with Creatine and Protein — these combinations either improve absorption or work synergistically toward common goals.
Who should not take HMB (Beta-Hydroxy Beta-Methylbutyrate)?
HMB (Beta-Hydroxy Beta-Methylbutyrate) should be avoided or used with caution by people with None. Pregnant or breastfeeding women should consult a healthcare provider before use.
What are the side effects of HMB (Beta-Hydroxy Beta-Methylbutyrate)?
Most people tolerate HMB (Beta-Hydroxy Beta-Methylbutyrate) well. The most commonly reported side effects are Well tolerated. Side effects are usually dose-dependent — lowering the dose often resolves them.
Dosage
Typical range
3 g daily in divided doses
Timing
Before/after workouts and with meals
With food
Optional
Duration
Safe long-term
Special Populations
Cutting phase, beginners, elderly
Research & Studies
Search the literature now
We haven’t curated landmark studies for HMB (Beta-Hydroxy Beta-Methylbutyrate)yet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.
Search HMB (Beta-Hydroxy Beta-Methylbutyrate) research
Mechanism of Action
- • Reduces muscle protein breakdown
- • May increase protein synthesis
- • Metabolite of leucine
Evidence Quality
Evidence Grade B
Helps prevent muscle loss
Safety & Contraindications
Serious Warnings
- • None
Contraindications
- • None
Common Side Effects
- • Well tolerated
Pregnancy & Breastfeeding
Consult healthcare provider
Liver & Kidney Notes
Safe
Interactions
💊 Medications
- • None significant
🧪 Supplements
- • May work with creatine
🍽️ Food & Alcohol
- • No interactions
Stacking & Synergies
Pairs Well With
Creatine ↗Protein
Avoid Combining With
None
Best Goal Synergies
Muscle preservationFat loss phase
Buying Guide
What to Look For
- • 3g daily dose
Standardization Markers
HMB-FA or HMB-Ca specified
Adulteration risk
Low
Practical Notes
- • Most useful during caloric deficit
- • Less effective for trained athletes
Tags
performancemuscleanticatabolic
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More in Performance
Other ingredients in the Performance category.
Agmatine Sulfate
Arginine metabolite with nitric oxide and pain-modulating effects. Enhances pumps.
Arachidonic Acid (ARA)
Omega-6 fatty acid that amplifies exercise-induced muscle signaling. Increases training response but also inflammation.
BCAAs
A branched-chain amino acid blend in a 2:1:1 leucine-to-isoleucine-to-valine ratio, formulated in instantized (micronized) form for improved solubility. BCAAs support muscle protein synthesis and may reduce exercise-induced fatigue, though whole protein sources provide comparable benefits at lower cost.
Beetroot / Nitrates
Dietary nitrates converted to nitric oxide for improved endurance and blood flow. Can enhance exercise efficiency.
Beta-Alanine
Increases muscle carnosine for buffering acid during high-intensity exercise. Delays fatigue in 1-4 minute efforts.
Beta-Hydroxybutyrate (BHB)
Exogenous ketone body that can elevate blood ketone levels. Used for energy, cognitive function, and supporting ketogenic diets.
Last reviewed: June 2026 by the Formulate Research Team. Sources cited above; methodology and scoring criteria published here.
Cite this page
Formulate Research Team. (2026, June). HMB (Beta-Hydroxy Beta-Methylbutyrate) — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/hmb
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.