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Gab4.0
GABA – Forschung
Hilft wahrscheinlich
20 begutachtete Studien
Was die Evidenz sagt
Hilft wahrscheinlich
GABA scheint in 3 von 3 Studien mit messbaren Effekten zu helfen — die Evidenz tendiert klar ins Positive.
Die meiste Evidenz stammt aus hochwertigen Meta-Analysen und randomisierten Studien, veröffentlicht 2006–2026 mit einer typischen Studiengröße von 90 Teilnehmenden.
Basierend auf 20 Studien · 1 Meta-Analyse · 10 RCTs · 1,611 Teilnehmende insgesamt
Konfidenz
Hohe Konfidenz
Was die Studien gefunden haben
3geholfen· 17 weitere ohne bewertete Effektdaten
Nach Outcome
Sleep & insomniaKann die Einschlafzeit verkürzen · 30-60 minutes · GABAerge Aktivität fördert tiefere, erholsamere Schlafphasen · 1-2 weeks · Unterstützung durch inhibitorische Neurotransmitter kann die Schlafkontinuität verbessern · 1-2 weeks
Überwiegend Mechanismus / Beobachtung9 Studien
Anxiety & stressVerringerte akute Angst und Stress · 30-60 minutes
2Herbal remedies effect on GABAergic system and sleepSystematische ÜbersichtCited 66×2021
Currently available evidence suggests that herbal extracts may exert some of their hypnotic and anxiolytic activity through interacting with GABA receptors and modulating GABAergic signaling in the brain, but their mechanism of action in the treatment of insomnia is not completely understood.
Bruni O et al. · Nutrients (2021)
Gamma-aminobutyric acid (GABA) is an inhibitory neurotransmitter that plays a major role in controlling different vigilance states.
GABA receptors are the targets of many pharmacological treatments for insomnia, such as benzodiazepines.
Here, we perform a systematic analysis of studies assessing the mechanisms of action of various herbal medicines on different subtypes of GABA receptors in the context of sleep control.
3Cognitive function and gut microbiome compositionSystematische Übersicht2025
This review describes the role of the gut microbiome and probiotics in AD.
Ajith TA et al. · Nutritional neuroscience (2025)
Compared to healthy controls, mild cognitive impairment and AD were associated with low levels of Firmicutes and Bifidobacterium and high levels of Proteobacteria and Bacteroidetes.
Lactobacillus and Bifidobacterium species were effective in improving cognitive function.
More longitudinal research is needed to investigate precision medicine in patients with dysbiosis in the preclinical stages of the disease.
A better understanding of GABA may introduce new windows for its application in developing functional foods.
Hou D et al. · Critical reviews in food science and nutrition (2024)
Herein, this review provides a comprehensive insight on the dietary sources, enrichment technologies, processing effects of GABA, and its applications in food industry.
Furthermore, the various health benefits of GABA-enriched foods, mainly including neuroprotection, anti-insomnia, anti-depression, anti-hypertensive, anti-diabetes, and anti-inflammatory are also summarized.
The main challenges for future research on GABA are related to exploring high GABA producing strains, enhancing the stability of GABA during storage, and developing emerging enrichment technologies without affecting food quality and other active ingredients.
Adds direct RCT evidence for GABA's effect on sleep onset and quality in clinically defined insomnia, strengthening the mechanistic case for supplementation.
Yamatsu A et al. · Nutrients (2024)
GABA supplementation significantly reduced sleep onset latency compared to placebo
Significant improvements in overall Pittsburgh Sleep Quality Index scores in the GABA group
Subjective sleep satisfaction was higher in the treatment arm with no adverse events
8Symptomatology of autism spectrum disorder and ADHDRCTCited 10×n=80 · small study2025
The probiotics used, may improve hyperactivity-impulsivity in children with ASD or/and ADHD and quality of life in children with ASD.
Rojo-Marticella M et al. · Research on child and adolescent psychopathology (2025)
Spürbar Nutzen
← SchlechterKein EffektBesser →
Likely real
A better comfort score (quality of life) was shown in children with ASD (probiotic: p = 0.010, Cohen's d = 0.722; placebo: p = 0.099, Cohen's d = 0.456).
The probiotics used, may improve hyperactivity-impulsivity in children with ASD or/and ADHD and quality of life in children with ASD.
Further research is warranted to explore probiotics as an adjunctive therapeutic intervention for NDs.Trial registration: clinicaltrials.gov Identifier: NCT05167110.
GABA supplementation elicited noteworthy enhancements in heart rate variability, emotional response, depression mitigation, and sleep efficiency following a 90-day supplementation.
Guimarães AP et al. · Journal of dietary supplements (2024)
Moreover, an improved emotional response was observed, characterized by diminished negative affect.
GABA supplementation yielded ameliorations in depression scores as per the Depression, Anxiety, and Stress Scale (DASS-21).
Notably, an augmented HRV was noted, attributed to heightened parasympathetic autonomic nervous system predominance.
GABA could work effectively as a natural relaxant and its effects could be seen within 1 hour of its administration to induce relaxation and diminish anxiety.
Abdou AM et al. · Biofactors (2006)
GABA significantly increased alpha waves and decreased beta waves on EEG, indicating relaxation and reduced anxiety
Stressed subjects taking GABA maintained higher salivary IgA levels than placebo, indicating enhanced immunity under stress
Effects on relaxation were observable within 1 hour of administration
13Sleep improvement through neurotransmitter regulationSystematische Übersicht2026
By delineating this gut-mediated neuromodulatory network, our study provides a novel theoretical foundation for the use of TP as a dietary strategy to ameliorate sleep disorders.
Hu B et al. · The Journal of nutritional biochemistry (2026)
These structural changes are accompanied by functional benefits, including enhanced intestinal barrier integrity and attenuated systemic inflammation.
Furthermore, gut microbiota metabolize TP into bioactive small molecules that enter systemic circulation, cross the blood-brain barrier (BBB), and modulate central neurotransmitters, notably serotonin (5-HT) and γ-aminobutyric acid (GABA).
By delineating this gut-mediated neuromodulatory network, our study provides a novel theoretical foundation for the use of TP as a dietary strategy to ameliorate sleep disorders.
Zuo Y et al. · European journal of medicinal chemistry (2026)
Representative chemical scaffolds are discussed to illustrate structure-based optimization strategies and lead identification approaches informed by high-resolution structural data.
This review summarizes recent progress in GABAA receptor targeting ligands, with an emphasis on distinct allosteric binding sites, regulatory mechanisms, and subtype-dependent pharmacological profiles.
Collectively, these advances highlight how structure-resolved insights are reshaping GABAAR drug discovery and enabling the development of next-generation therapeutics with improved efficacy and reduced adverse effects.
15Insomnia severity index scoresRCTn=139 · medium study2026
This rct examined the effects of GABA.
Grant AD et al. · Scientific reports (2026)
Sehr groß Nutzen
← SchlechterKein EffektBesser →
Likely real
Participants were screened for at least moderate symptoms of insomnia and blindly assigned to receive either a placebo capsule or 5 billion CFU of Lp815 per day. 139 Individuals (5 billion CFU Lp815 n = 70, placebo n = 69) were evaluated, aged 44 ± 13 years, 51.1% female and 55.4% Caucasian.
Participants who received 5 billion CFU Lp815 exhibited significantly lower insomnia severity index scores at 6 weeks compared to placebo (p < 0.05).
This result was clinically meaningful, with 77.3% of participants in the 5 billion CFU Lp815 cohort exhibiting improvement by 4 + points in their insomnia severity index at week 6, compared to 57.8% in the placebo group (p = 0.02).
This systematic-review examined the effects of GABA.
Crockett C et al. · Advances in therapy (2025)
With nearly 40% of women's lives spent post-menopause, combined with the extensive amount of time women sometimes spend in perimenopause (up to 12%), when mental health challenges are noted to be most acute, effective menopause management should be an urgent public health priority.
18pancreatic β-cell content, glucagon attenuation, and T-cell immune destructionSystematische Übersicht2024
Going forward, it is reassuring that oral GABA therapy has been well-tolerated and devoid of serious adverse effects.
Mick GJ et al. · Frontiers in endocrinology (2024)
Glutamate constitutes 10% of the amino acids in dietary protein and is preeminently concentrated in human milk.
Three diabetes-related therapeutic actions are ascribed to GABA, namely, increasing pancreatic β-cell content, attenuating excess glucagon and tamping down T-cell immune destruction.
These salutary actions have been observed in numerous rodent diabetes models that usually employed high or near-continuous GABA doses.
The purpose of this review is to attract researchers from various fields to focus on GABA research, promote multidisciplinary communications and collaborations, break down disciplinary barriers, stimulate innovative research ideas and methods, and advance the development and application of GABA in medicine, agriculture, food and other fields.
Zhang Q et al. · PeerJ (2024)
In this review, we first make an overview of GABA, focusing on its synthesis, metabolism, GABA receptors and physiological functions.
Next, we describe the industrial production methods of GABA.
Finally, we discuss the development of ligands for the GABA receptor binding site, the prospects of GABA production and application, as well as its clinical trials in potential drugs or compounds targeting GABA for the treatment of epilepsy.
Study registration https://ensaiosclinicos.gov.br/rg/RBR-8t7h259.
de Medeiros Pires LV, de Barros Martins A, Trindade CMO, Dos Santos Baleeiro R, Peixoto TG, Teixeira E Silva VL, de Castro Pinto KM, Guimarães Drummond E Silva F, Coelho DB, de Oliveira EC, Becker LK. · Clinical nutrition ESPEN (2025)
Results For intragroup comparisons hand grip improved in both groups (placebo, p = 0.00276; GABA, p = 0.00012), while sit-up performance increased only in the GABA group (p = 0.00664).
Body mass index (p = 0.01273) and waist circumference (p = 0.01393) decreased in the GABA group.
In the placebo group, body mass (p = 0.02956), fat-free mass (p = 0.00344), and basal metabolic rate (BMR) (p = 0.00386) decreased, while body fat increased (p = 0.02666).