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evidence · mechanism · dose
Supplements/Amino Acid

BCAA 2:1:1

Leucine:Isoleucine:Valine for muscle.

Muscle Growth

Overview

Leucine:Isoleucine:Valine for muscle.

Natural sources
    Common forms

      Mechanism of action

      Leucine-rich blend stimulates mTOR.

      Pathways

        Effects on the body

        Organ system effects

        Evidence-based benefits

        Reduces DOMS

        Moderate evidence

        Potential side effects

        Common
        • · Well tolerated
        Rare
          Serious

            Drug interactions

            No notable interactions reported.

            Supplement interactions

            Pairs well with

            None listed.

            Avoid combining with

            No specific avoidances listed.

            Dosing & bioavailability

            Typical dose
            5–10 g

            Where to buy

            Affiliate-style search links to reputable retailers. We don't endorse specific brands — verify third-party testing (USP, NSF, Informed Sport) before purchase.

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            Thorne
            Practitioner-grade · NSF tested

            Scientific evidence (8)

            RCTJ Int Soc Sports Nutr · 2012

            BCAA for DOMS

            Howatson G, et al.

            12 trained men

            Key findings

            Reduced muscle soreness.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: BCAA 2:1:1 — Reduces DOMS

            Live PubMed search

            Live results for "BCAA 2:1:1 Reduces DOMS" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching BCAA 2:1:1 and "Reduces DOMS". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: BCAA 2:1:1 — randomized controlled trial

            Live PubMed search

            Live results for "BCAA 2:1:1 randomized controlled trial" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching BCAA 2:1:1 and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: BCAA 2:1:1 — meta-analysis

            Live PubMed search

            Live results for "BCAA 2:1:1 meta-analysis" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching BCAA 2:1:1 and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: BCAA 2:1:1 — pharmacokinetics

            Live PubMed search

            Live results for "BCAA 2:1:1 pharmacokinetics" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching BCAA 2:1:1 and "pharmacokinetics". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: BCAA 2:1:1 — safety adverse events

            Live PubMed search

            Live results for "BCAA 2:1:1 safety adverse events" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching BCAA 2:1:1 and "safety adverse events". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: BCAA 2:1:1 — dose response

            Live PubMed search

            Live results for "BCAA 2:1:1 dose response" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching BCAA 2:1:1 and "dose response". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewGoogle Scholar · 1970

            Google Scholar: BCAA 2:1:1 — clinical evidence

            Live Scholar search

            Cross-database citation index for BCAA 2:1:1 as it relates to "clinical evidence".

            Key findings

            Includes preprints, theses, and journal articles. Useful for tracking citation counts and follow-on work.

            Open study
            Educational use only. This profile is not medical advice. Consult a qualified healthcare professional before starting any supplement, especially if you take prescription medication or have a chronic condition.