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evidence · mechanism · dose
Supplements/Compound

GABA (Pharma-grade)

Fermented GABA with reported peripheral relaxation effects.

Mood & AnxietySleep & Recovery

Overview

Fermented GABA with reported peripheral relaxation effects.

Natural sources
    Common forms

      Forms & variants of GABA

      Different chemical forms of GABA behave differently. Browse each form's mechanism, bioavailability, and best-use context.

      Parent
      GABA

      Primary inhibitory neurotransmitter; oral supplementation has limited CNS penetration.

      Mechanism of action

      Acts peripherally on enteric nervous system; minimal CNS penetration.

      Pathways

        Effects on the body

        Organ system effects

        Evidence-based benefits

        Reduces stress markers acutely

        Moderate evidence

        Potential side effects

        Common
        • · Mild tingling
        Rare
          Serious

            Drug interactions

            No notable interactions reported.

            Safety & non-supplemental interactions

            Educational summary — always confirm with your clinician or pharmacist before starting, stopping, or combining with prescription therapy.

            Avoid / monitor with these medications
            • ·Alcohol, benzodiazepines, opioids, sedating antihistamines (additive CNS depression)

            Supplement interactions

            Pairs well with

            None listed.

            Avoid combining with

            No specific avoidances listed.

            Dosing & bioavailability

            Typical dose
            100–300 mg
            With food?
            Either

            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.

            Compound
            GABA (Pharma…
            Amazon
            Wide selection · fast shipping
            Compound
            GABA (Pharma…
            iHerb
            Global delivery · curated brands
            Compound
            GABA (Pharma…
            Thorne
            Practitioner-grade · NSF tested

            Scientific evidence (8)

            RCTBiofactors · 2006

            PharmaGABA on acute stress

            Abdou AM, et al.

            Crossover trial in 13 adults.

            Key findings

            Decreased Beta and increased Alpha EEG activity post-stress.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: GABA (Pharma-grade) — Reduces stress markers acutely

            Live PubMed search

            Live results for "GABA (Pharma-grade) Reduces stress markers acutely" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching GABA (Pharma-grade) and "Reduces stress markers acutely". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: GABA (Pharma-grade) — randomized controlled trial

            Live PubMed search

            Live results for "GABA (Pharma-grade) randomized controlled trial" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching GABA (Pharma-grade) and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: GABA (Pharma-grade) — meta-analysis

            Live PubMed search

            Live results for "GABA (Pharma-grade) meta-analysis" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching GABA (Pharma-grade) and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: GABA (Pharma-grade) — pharmacokinetics

            Live PubMed search

            Live results for "GABA (Pharma-grade) pharmacokinetics" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching GABA (Pharma-grade) and "pharmacokinetics". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: GABA (Pharma-grade) — safety adverse events

            Live PubMed search

            Live results for "GABA (Pharma-grade) safety adverse events" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching GABA (Pharma-grade) and "safety adverse events". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewPubMed (NLM) · 1970

            PubMed: GABA (Pharma-grade) — dose response

            Live PubMed search

            Live results for "GABA (Pharma-grade) dose response" across the PubMed/MEDLINE peer-reviewed index.

            Key findings

            Opens current human and preclinical literature matching GABA (Pharma-grade) and "dose response". Filter by RCT, meta-analysis, or year on the results page.

            Open study
            Systematic reviewGoogle Scholar · 1970

            Google Scholar: GABA (Pharma-grade) — clinical evidence

            Live Scholar search

            Cross-database citation index for GABA (Pharma-grade) 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.