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Chewable GABA

NOW
4.6
★ ★ ★ ★ ★
(4862 ratings)
GABA 500 mg
Theanine 20 mg
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Score74
A convenient, fully disclosed GABA chewable with only light support from its secondary ingredients. It fits gentle calming use better than focused theanine support.
How scoring works
Quantity:90 Tablet(s) • (45 servings)
Goals:
Stress Relief
Mood Support
Sleep Support

Score 74

A convenient, fully disclosed GABA chewable with only light support from its secondary ingredients. It fits gentle calming use better than focused theanine support.
How scoring works
$13.90($0.30 per serving)
Pure Formulas
$ 14.27
Vitacost
$ 15.95
Daily Vita
$ 13.90
Amazon
$ 14.69
iHerb
$ 14.69
Walmart
$ 16.99
iHerb
$ 14.69
Report prices

Analysis

GABA supplies the main calming amount and is the clearest reason to choose the formula. Oral GABA has uncertain access to the brain, so a substantial label dose does not ensure an equally strong effect.

Taurine, inositol, and L-theanine broaden the calming theme but sit well below useful standalone amounts. They may add mild support, although the formula should not be judged as a meaningful theanine product.

The chewable format is easy to use and every active dose is stated. Four grams of carbohydrate per serving and several lightly dosed additions make it less streamlined than a simple capsule.

Who is it for
  • Adults who prefer chewables to capsules
  • People seeking a GABA-centered calming formula
  • Users comfortable with a carbohydrate-based supplement
Best for
  • Situational relaxation
  • Chewable GABA use
  • Simple evening wind-down routines

Pros

  • Provides 500 mg GABA
  • Discloses every active amount
  • Chewable format is convenient
  • Includes complementary taurine, inositol, and L-theanine

Cons

  • Only 20 mg L-theanine
  • Taurine and inositol are lightly dosed
  • Contains 4 g carbohydrate per serving
  • GABA source is not characterized

Warnings

  • The 500 mg GABA amount may cause drowsiness, so learn its effects before driving or operating equipment.
  • GABA may add to the sedating effects of alcohol, sleep medicines, benzodiazepines, or other sedatives.
  • The chewable provides 4 g carbohydrate per serving, which may matter to people closely managing carbohydrate intake.

Nutrient quality

70 High impact

The GABA amount is substantial, but the supporting taurine, inositol, and L-theanine amounts are small. A carbohydrate-heavy chewable base and uncertain oral GABA delivery limit formula quality.

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Ingredient transparency

76 High impact

Every active has an individual amount and no proprietary blend obscures the formula. Complete intake directions, GABA sourcing, and non-active chewable ingredients remain undisclosed.

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Customer satisfaction

71 High impact

The supplied satisfaction average is strong and has very large supporting volume. No specific experience details are provided to assess repeated complaints or alignment with the intended use.

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Value for money

79 High impact

A substantial GABA amount and very accessible serving cost provide good practical value. Token supporting doses and a carbohydrate-heavy format reduce the quality delivered by each serving.

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Report analysis

Goals

Stress Relief
Stress Relief
Impact
High effect
B Goal FitB- Strength of SupportC+ CoverageB Formula Quality
GABA · 500 mgTheanine · 20 mg

A full GABA amount provides the formula’s main calming pathway, while taurine, inositol, and L-theanine add complementary neurotransmitter support. Oral GABA has uncertain brain availability, so the strong label dose does not guarantee a proportionate effect.

The chewable format may disintegrate quickly and every active amount is stated. Taurine and L-theanine are far below their usual standalone ranges, and the carbohydrate base makes the formula less focused than a capsule.

Study evidence
GABA Supportive 6 studies
Taurine Supportive 5 studies
Theanine Supportive 16 studies
Mood Support
Mood Support
Impact
High effect
C- Goal FitB Strength of SupportC+ CoverageA- Formula Quality

GABA provides a substantial calming dose, with taurine and inositol adding related nervous-system support. L-theanine is present far below its usual useful range.

The chewable format and exact amounts make the formula easy to assess. The 500 mg GABA amount may cause drowsiness, particularly with alcohol, sleep aids, or other sedating medicines.

Study evidence
GABA Supportive 12 studies
Theanine Supportive 12 studies
Sleep Support
Sleep Support
Impact
Moderate effect
C- Goal FitC+ Strength of SupportC CoverageC+ Formula Quality
Theanine · 20 mg

GABA supplies the main calming amount, but oral GABA has uncertain access to the brain and limited sleep evidence. Taurine, inositol, and L-theanine are present at amounts too small to add strong independent support.

The chewable format may disintegrate quickly and every active amount is disclosed. Carbohydrates and several token-dose ingredients make the formula less focused than a simple GABA product.

Study evidence
GABA Supportive 4 studies
Taurine Not classified

No linked studies yet.

Theanine Supportive 8 studies

Ingredients

IngredientAmount per serving
Calories
15 Calorie(s)
Total Carbohydrates
4 Gram(s)
GABA
500 mg
Taurine
100 mg
Inositol
80 mg
L-Theanine
20 mg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Vegetarian
Report overview
GABA · 500 mg OverallScore84
B+ Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyB- Value

A full standalone amount of standard GABA is paired with chewable delivery that may disintegrate quickly. Taurine, inositol, and theanine add supporting ingredients, while the carbohydrate content makes the formula less minimal than a capsule. Value is fair for the active amount, though the GABA source is not branded or described as fermented.

View ingredientView products
Theanine · 20 mg OverallScore56
B+ Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyF Value

The label uses the correct L-Theanine isomer, but the dose is too low to match the usual effective range on its own. Its exact amount is disclosed, while no branded source or purity standard is given. The small active dose makes the cost per useful amount poor despite the multi-ingredient formula.

View ingredientView products
Loading alternative details
87 Performance

L-Theanine 100 mg

California Gold Nutrition
AlphaWave L-theanine provides a clearly disclosed 100 mg amount with branded ingredient assurance. The defined source and focused dose improve ingredient clarity over the original carbohydrate-based chewable and lightly dosed theanine. The focused formula omits GABA, but evidence for swallowed theanine is more direct than for swallowed GABA.
87 Performance

L-Theanine 200 mg Double Strength

Swanson
Branded Suntheanine supplies a substantial 200 mg amount in a focused capsule without unrelated actives. The defined source and focused dose improve ingredient clarity over the original carbohydrate-based chewable and lightly dosed theanine. The focused formula omits GABA, but evidence for swallowed theanine is more direct than for swallowed GABA.
85 Performance

Pharma GABA 250 mg

Natural Factors Stress-Relax
Fermented Pharma GABA provides a well-defined 250 mg amount in a focused formula with stronger source assurance than generic GABA. The defined source and focused dose improve ingredient clarity over the original carbohydrate-based chewable and lightly dosed theanine. Oral GABA has uncertain brain availability and may cause drowsiness, especially with alcohol, sleep aids, or other sedating products.
84 Budget

GABA

NOW
A substantial 500 mg GABA amount in a flexible liquid provides focused calming support at exceptionally low serving cost. Its lower serving cost improves affordability over the original carbohydrate-based chewable and lightly dosed theanine. Oral GABA has uncertain brain availability and may cause drowsiness, especially with alcohol, sleep aids, or other sedating products.
81 Budget

GABA Powder

Source Naturals Serene Science
A clearly disclosed 750 mg GABA amount provides a simple, adjustable powder at exceptionally low serving cost. Its lower serving cost improves affordability over the original carbohydrate-based chewable and lightly dosed theanine. Oral GABA has uncertain brain availability and may cause drowsiness, especially with alcohol, sleep aids, or other sedating products.
85 Budget

L-Theanine 200 mg

California Gold Nutrition
A focused 200 mg L-theanine capsule provides a well-aligned calming amount with strong serving value. Its lower serving cost improves affordability over the original carbohydrate-based chewable and lightly dosed theanine. The focused formula omits GABA, but evidence for swallowed theanine is more direct than for swallowed GABA.
85 Value

Double Strength L-Theanine 200 mg

NOW
A meaningful 200 mg L-theanine amount supports calm focus in a simple capsule with strong practical value. The combination of a meaningful dose and practical serving cost is better balanced than the original carbohydrate-based chewable and lightly dosed theanine. The focused formula omits GABA, but evidence for swallowed theanine is more direct than for swallowed GABA.
83 Value

GABA 500 mg

Nutricost
A clearly disclosed 500 mg GABA amount with a small vitamin B6 addition provides concise calming support at very low serving cost. The combination of a meaningful dose and practical serving cost is better balanced than the original carbohydrate-based chewable and lightly dosed theanine. Oral GABA has uncertain brain availability and may cause drowsiness, especially with alcohol, sleep aids, or other sedating products.
85 Value

L-Theanine 150 mg

Solgar
A useful 150 mg Suntheanine amount combines branded ingredient identity with a streamlined single-active design. The combination of a meaningful dose and practical serving cost is better balanced than the original carbohydrate-based chewable and lightly dosed theanine. The focused formula omits GABA, but evidence for swallowed theanine is more direct than for swallowed GABA.
Report alternatives

Sources

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

  1. 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 Mood Support forGABA
  2. 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 participantsStress Relief Sleep Support forGABA
  3. 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 Mood Support Stress Relief forTheanine
  4. Anti-Stress, Behavioural and Magnetoencephalography Effects of an L-Theanine-Based Nutrient Drink: A Randomised, Double-Blind, Placebo-Controlled, Crossover Trial.
    White DJ; de Klerk S; Woods W; Gondalia S; Noonan C; Scholey AB · Nutrients · 2016
    Randomized trial34 participantsStress Relief forTheanine
  5. Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Moulin M; Crowley DC; Xiong L; Guthrie N; Lewis ED · Neurology and therapy · 2024
    Randomized trial30 participantsStress Relief forTheanine
  6. L-theanine in the adjunctive treatment of generalized anxiety disorder: A double-blind, randomised, placebo-controlled trial.
    Sarris J; Byrne GJ; Cribb L; Oliver G; Murphy J; Macdonald P; Nazareth S; Karamacoska D; Galea S; Short A; Ee C; Birling Y; Menon R; Ng CH · Journal of psychiatric research · 2020
    Randomized trial46 participantsStress Relief Sleep Support forTheanine
  7. Effect of Combined Ingestion of L-Theanine and L-Arginine for Short-Term Psychological Stress in Young Adults: A Randomized Placebo-Controlled Study.
    Furushima D; Sugiyama I; Nomura Y; Unno K; Yamada H · Journal of nutritional science and vitaminology · 2023
    Randomized trial120 participantsStress Relief forTheanine
  8. Peripartum neuroactive steroid and γ-aminobutyric acid profiles in women at-risk for postpartum depression.
    Deligiannidis KM; Kroll-Desrosiers AR; Mo S; Nguyen HP; Svenson A; Jaitly N; Hall JE; Barton BA; Rothschild AJ; Shaffer SA · Psychoneuroendocrinology · 2017
    Cohort study56 participantsMood Support forGABA
  9. The role of neurotransmitters in mediating the relationship between brain alterations and depressive symptoms in patients with inflammatory bowel disease.
    Wang J; Liu G; Xu K; Ai K; Huang W; Zhang J · Human brain mapping · 2023
    Case-control study69 participantsMood Support forGABA
  10. Occipital gamma-aminobutyric acid and glutamate-glutamine alterations in major depressive disorder: An mrs study and meta-analysis.
    Truong V; Cheng PZ; Lee HC; Lane TJ; Hsu TY; Duncan NW · Psychiatry research. Neuroimaging · 2021
    Observational studyMood Support forGABA
  11. Systematic review of gamma-aminobutyric-acid inhibitory deficits across the reproductive life cycle.
    Vigod SN; Strasburg K; Daskalakis ZJ; Blumberger DM · Archives of women's mental health · 2014
    Systematic review11 studies pooledMood Support forGABA
  12. l-theanine adjunct to sertraline for major depressive disorder: A randomized, double-blind, placebo-controlled clinical trial.
    Shamabadi A; Kafi F; Arab Bafrani M; Asadigandomani H; A Basti F; Akhondzadeh S · Journal of affective disorders · 2023
    Randomized trial60 participantsMood Support forTheanine
  13. L-theanine relieves positive, activation, and anxiety symptoms in patients with schizophrenia and schizoaffective disorder: an 8-week, randomized, double-blind, placebo-controlled, 2-center study.
    Ritsner MS; Miodownik C; Ratner Y; Shleifer T; Mar M; Pintov L; Lerner V · The Journal of clinical psychiatry · 2011
    Randomized trial60 participantsMood Support Stress Relief forTheanine
  14. The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review.
    Williams JL; Everett JM; D'Cunha NM; Sergi D; Georgousopoulou EN; Keegan RJ; McKune AJ; Mellor DD; Anstice N; Naumovski N · Plant foods for human nutrition (Dordrecht, Netherlands) · 2020
    Systematic review9 studies pooledMood Support forTheanine
  15. Anti-stress effect of theanine on students during pharmacy practice: positive correlation among salivary α-amylase activity, trait anxiety and subjective stress.
    Unno K; Tanida N; Ishii N; Yamamoto H; Iguchi K; Hoshino M; Takeda A; Ozawa H; Ohkubo T; Juneja LR; Yamada H · Pharmacology, biochemistry, and behavior · 2014
    Randomized trial20 participantsMood Support forTheanine
  16. 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
  17. 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
  18. 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
  19. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
    Hidese S; Ogawa S; Ota M; Ishida I; Yasukawa Z; Ozeki M; Kunugi H · Nutrients · 2020
    Randomized trial30 participantsSleep Support forTheanine
  20. Comparison Between Efficacy of Oral Melatonin and Oral L-theanine in Improving Sleep in Cancer Patients Suffering From Insomnia: A Randomised Double-blinded Placebo-controlled Study.
    Kurdi MS; As A; Ladhad DA; Mitragotri MV; Baiju A · Indian journal of palliative care · 2024
    Randomized trial120 participantsSleep Support forTheanine
  21. The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis.
    Bulman A; D'Cunha NM; Marx W; Turner M; McKune A; Naumovski N · Sleep medicine reviews · 2025
    Meta-analysis897 participants19 studies pooledSleep Support forTheanine
  22. In Search of a Safe Natural Sleep Aid.
    Rao TP; Ozeki M; Juneja LR · Journal of the American College of Nutrition · 2016
    Narrative reviewSleep Support forTheanine
  23. 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
  24. 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
  25. Protective and therapeutic effectiveness of taurine supplementation plus low calorie diet on metabolic parameters and endothelial markers in patients with diabetes mellitus: a randomized, clinical trial.
    Moludi J; Qaisar SA; Kadhim MM; Ahmadi Y; Davari M · Nutrition & metabolism · 2022
    Randomized trial120 participantsStress Relief forTaurine
  26. Effects of taurine supplementation on VDT work induced visual stress.
    Zhang M; Bi LF; Ai YD; Yang LP; Wang HB; Liu ZY; Sekine M; Kagamimori S · Amino acids · 2005
    Randomized trial25 participantsStress Relief forTaurine
  27. Taurine supplementation attenuates delayed increase in exercise-induced arterial stiffness.
    Ra SG; Choi Y; Akazawa N; Ohmori H; Maeda S · Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2017
    Randomized trial29 participantsStress Relief forTaurine
  28. Correlations between dietary taurine intake and life stress in Korean college students.
    Sung MJ; Chang KJ · Advances in experimental medicine and biology · 2009
    Observational studyStress Relief forTaurine
  29. Profiling inflammatory and oxidative stress biomarkers following taurine supplementation: a systematic review and dose-response meta-analysis of controlled trials.
    Faghfouri AH; Seyyed Shoura SM; Fathollahi P; Shadbad MA; Papi S; Ostadrahimi A; Faghfuri E · European journal of clinical nutrition · 2022
    Meta-analysisStress Relief forTaurine
  30. A Randomized, Triple-Blind, Placebo-Controlled, Crossover Study to Investigate the Efficacy of a Single Dose of AlphaWave® L-Theanine on Stress in a Healthy Adult Population.
    Evans M; McDonald AC; Xiong L; Crowley DC; Guthrie N · Neurology and therapy · 2021
    Randomized trialStress Relief forTheanine