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GABA

NutraKey
4.6
★ ★ ★ ★ ★
(25 ratings)
GABA 3000 mg
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Score60
Flexible powder can be portioned down, but the full serving is excessive and ordinary oral GABA has uncertain effectiveness.
How scoring works
Quantity:125 Gram(s) • (42 servings)
Goals:
Stress Relief
Sleep Support

Score 60

Flexible powder can be portioned down, but the full serving is excessive and ordinary oral GABA has uncertain effectiveness.
How scoring works
$16.49($0.39 per serving)
Nutrition Faktory
$ 16.49
iHerb
$ 0.00
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Analysis

The 3,000 mg full serving greatly exceeds a typical standalone range for a product aimed at relaxation, stress, or sleep support. Oral GABA targets an inhibitory pathway, but its ability to reach the brain reliably remains uncertain.

Powder delivery allows flexible portioning and avoids tablet disintegration. The single-active design is easy to assess and avoids unrelated ingredients.

The supply and serving cost provide good practical value. The formula is better suited to situational calming than to broad mood support or circadian sleep timing.

Who is it for
  • Adults who prefer mixable powders
  • Users wanting adjustable GABA portions
Best for
  • Situational relaxation support
  • A focused single-pathway formula

Pros

  • Flexible powder portioning
  • Focused active-ingredient list
  • Forty-two full servings

Cons

  • Full scoop is excessively high
  • Greater risk of dose-related side effects
  • Does not address circadian timing

Warnings

  • GABA may cause drowsiness; do not drive or operate machinery until its effects are known.
  • Alcohol, sleep medicines, sedating antihistamines, and other sedatives may intensify impaired alertness.
  • GABA may lower blood pressure in some users; monitor for dizziness when using blood-pressure medicine.

Nutrient quality

50 Lower impact

Powder delivery allows reduction of the portion, but ordinary GABA remains absorption-limited does not overcome the main uncertainty about how much ordinary GABA reaches the brain. The full serving greatly exceeds the preferred standalone range.

Ingredient transparency

81 Highest impact

The GABA amount is clearly disclosed. Excipients and daily directions are absent from the supplied data, which leaves some label details uncertain.

Customer satisfaction

59 Moderate impact

The aggregate satisfaction average is favorable, though no detailed feedback is supplied. The small volume limits confidence in the aggregate satisfaction signal.

Value for money

46 Lower impact

A low price cannot fully offset an unnecessarily aggressive full serving. The price is moderate, but the oversized full serving reduces practical value.

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Goals

Stress Relief
Impact
Highest effect
B Goal FitA+ Strength of SupportC CoverageA Formula Quality
GABA · 3000 mg

Gamma-aminobutyric acid directly targets inhibitory signaling and relaxation at a high disclosed amount. The focused design is transparent and free from competing stimulants.

Evidence for oral gamma-aminobutyric acid crossing into the brain and reliably reducing stress remains limited. The product therefore offers strong dose clarity but uncertain real-world effectiveness.

Study evidence
GABA Supportive 6 studies
Sleep Support
Impact
Moderate effect
C- Goal FitD- Strength of SupportF CoverageB+ Formula Quality

GABA offers a direct relaxation pathway and the powder format allows flexible portioning. The full scoop, however, supplies far more than the preferred range for this ingredient.

Oral GABA has limited and inconsistent sleep evidence, and the single-active formula does not address circadian timing. A 3,000 mg serving may increase drowsiness, dizziness, or tingling, so lower-dose flexibility is important.

Study evidence
GABA Supportive 4 studies

Ingredients

IngredientAmount per serving
Gamma-Aminobutyric Acid
3000 mg
Adults 18–50
Report overview
GABA · 3000 mg OverallScore58
B+ Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyD- Value

The powder format allows flexible mixing and may support rapid delivery. However, the single-scoop GABA amount greatly exceeds the preferred range, which can increase the chance of drowsiness, dizziness, or tingling. The serving cost is moderate, but the excessive dose reduces practical value.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Safety and Efficacy of Gamma-Aminobutyric Acid from Fermented Rice Germ in Patients with Insomnia Symptoms: A Randomized, Double-Blind Trial.
    Byun JI; Shin YY; Chung SE; Shin WC · Journal of clinical neurology (Seoul, Korea) · 2020
    Randomized trial40 participantsSleep Support forGABA
  2. Reduced γ-aminobutyric acid in occipital and anterior cingulate cortices in primary insomnia: a link to major depressive disorder?
    Plante DT; Jensen JE; Schoerning L; Winkelman JW · Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2012
    Case-control study40 participantsSleep Support forGABA
  3. Oral intake of γ-aminobutyric acid affects mood and activities of central nervous system during stressed condition induced by mental tasks.
    Yoto A; Murao S; Motoki M; Yokoyama Y; Horie N; Takeshima K; Masuda K; Kim M; Yokogoshi H · Amino acids · 2012
    Randomized trial63 participantsStress Relief forGABA
  4. Analysis of the Effects of Known Sleep-Support Supplements in Relation to Life Habits, Sleep Conditions, and Sleep Problems.
    Imafuku F; Yamamoto K; Tanaka E; Aoki R; Nishino S · Nutrients · 2023
    Randomized trial160 participantsSleep Support forGABA
  5. GABA Supplementation, Increased Heart-Rate Variability, Emotional Response, Sleep Efficiency and Reduced Depression in Sedentary Overweight Women Undergoing Physical Exercise: Placebo-Controlled, Randomized Clinical Trial.
    Guimarães AP; Seidel H; Pires LVM; Trindade CO; Baleeiro RDS; Souza PM; Silva FGDE; Coelho DB; Becker LK; Oliveira EC · Journal of dietary supplements · 2024
    Randomized trial30 participantsSleep Support Stress Relief forGABA
  6. Relieving occupational fatigue by consumption of a beverage containing γ-amino butyric acid.
    Kanehira T; Nakamura Y; Nakamura K; Horie K; Horie N; Furugori K; Sauchi Y; Yokogoshi H · Journal of nutritional science and vitaminology · 2011
    Clinical trial30 participantsStress Relief forGABA
  7. Cortical gamma-aminobutyric acid and glutamate in posttraumatic stress disorder and their relationships to self-reported sleep quality.
    Meyerhoff DJ; Mon A; Metzler T; Neylan TC · Sleep · 2014
    Case-control study45 participantsStress Relief forGABA
  8. Comparison of the effects of two amino acids, Gamma-aminobutyric acid (GABA) and L-theanine, on sedation, anxiety, and cognition in preoperative surgical patients - A randomized controlled study.
    Deshpande SS; Kurdi M; Baiju A; Athira AS; Sarasamma AG; Gangadharan AK · Journal of anaesthesiology, clinical pharmacology · 2025
    Randomized trial168 participantsStress Relief forGABA