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GABA: study protocols

11 study groups say how much GABA participants took a day. These are the doses the studies gave. They are not a recommendation.

GABA: what the research found →

Dose per serving from products

1,587 products in our catalogue print how much GABA a serving holds.

Most common: 50 mg to 100 mg, 36% of 1,587 products.

Dose per servingProducts
10 mg or less
70
10 mg to 25 mg
81
25 mg to 50 mg
166
50 mg to 100 mg
565
100 mg to 250 mg
314
250 mg to 500 mg
216
500 mg to 1 g
155
over 1 g
20

Dose per serving from research

9 study groups in 9 studies say how much GABA participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 100 mg to 250 mg, 44% of 9 study groups.

Daily doseStudy groups
25 mg to 50 mg
2
50 mg to 100 mg
0
100 mg to 250 mg
4
250 mg to 500 mg
1
500 mg to 1 g
2

Commonly used together

2 of 11 study groups took GABA with something else, but nothing that 3 or more different studies gave.

11 study groups

Study
γ-Aminobutyric acid (GABA) administration improves action selection processes: a randomised controlled trial
2015 · GABA group · Undergraduate students aged 18–22; predominantly female; without cardiac, hepatic, renal, neurological or psychiatric disorders
800 mg1 day15
The role of Gabapentin oral solution in decreasing desflurane associated emergence agitation and delirium in children after stabismus surgery, a prospective randomized double-blind study
2018 · Gabapentin group (G) · Children aged 2–6 years, both sexes, ASA physical status I–II, undergoing strabismus surgery
5 mg/kg1 day35
Effect of Extract of Black Sticky Rice with Giant Embryo on Alcohol Cravings of Korean Social Drinkers: A 12-Week Randomized, Placebo-Controlled Trial
2022 · BSRGE extract group (G group) · Korean social drinkers; age and sex not specified
30 mg12 weeks21
γ-Aminobutyric Acid Intake Improves Psychological State and Performance in Esports: A Randomized, Placebo-Controlled, Double-Blind Crossover Study
2025 · GABA group · Healthy male university students aged 20–24 years with experience playing League of Legends
200 mg1 day8
Analysis of the Effects of Known Sleep-Support Supplements in Relation to Life Habits, Sleep Conditions, and Sleep Problems
2023 · GABA · Healthy, non-smoking, non-drinking full-time workers with sleep problems; age and sex not specified
111 mg7 days—
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
2024 · GABA intervention group · Sedentary women with overweight or obesity
200 mg90 days—
Effects of combined gamma aminobutyric acid supplementation and exercise training on the body composition of women: A randomized double-blind trial
2025 · GABA · Women with obesity; age range not reported
200 mg90 days—
Anti-hypertensive effect of gamma-aminobutyric acid (GABA)-rich Chlorella on high-normal blood pressure and borderline hypertension in placebo-controlled double blind study
2009 · GABA-rich Chlorella group · Adults with high-normal blood pressure or borderline hypertension (SBP 130–159 mmHg or DBP 85–99 mmHg)
40 mg12 weeks40
Oral administration of γ-aminobutyric acid affects heat production in a hot environment in resting humans
2012 · GABA trial (trial G) · Healthy nonsmoking men who usually exercised 3 to 5 days per week; mean age 23.5 ± 3.6 years
1 g1 day8
[Effect of gamma-aminobutyric acid treatment on plasma substance P and calcitonin gene-related peptide levels in children with asthma]
2013 · GABA treatment group · Children with acute asthma
25 mg/kg—36
Effect of Single Oral Coingestion of GABA and Malic Acid on Postprandial GLP-1, Glucose, and Insulin Responses in Healthy Volunteers: A Randomized, Double-Blind, Placebo-Controlled, Crossover Study
2024 · Test · Healthy adults
400 mg1 day22