GABA ： 不安に伴う睡眠障害
B エビデンス 少なくとも1件のランダム化試験がこれを支持しており、おおむね一貫した結果が得られています。7件の研究（メタアナリシス2件を含む）に基づく。7件中7件の研究で肯定的な効果が示されている。
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B
結論
GABA supplementation may support better sleep in people with anxiety-related sleep problems, with consistently positive findings from reviews and meta-analyses.
- All 7 studies show positive effects, including 2 meta-analyses
- GABA is the brain's main calming neurotransmitter, essential for relaxation and sleep
- Multiple GABA-modulating herbs (valerian, lavender) have been studied for anxiety and sleep
- Questions remain about how effectively oral GABA supplements reach the brain
Key Study Findings
Review
The Efficacy of Melatonergic Receptor Agonists Used in Clinical Practice in Insomnia Treatment: Melatonin, Tasimelteon, …
Dose: None
vs: Placebo
効果: None
None
In Vitro
Lavender essential oil fractions alleviate sleep disorders induced by the combination of anxiety and caffeine …
Dose: Lavender essential oil fractions 3% (v/v) via inhalation
vs: Placebo
効果: Lavender essential oil and fractions ameliorated sleep disturbances induced by anxiety and caffeine;
None
In Vitro
Screening the effective components of Suanzaoren decoction on the treatment of chronic restraint stress induced …
Dose: Suanzaoren decoction (SZRD) orally administered; dose not specified
vs: Placebo
効果: SZRD increased open arm entries and time; improved 5-HT, GABA, NE levels; affected CORT and CRH; 11
None
In Vitro
Valeriana officinalis root extracts have potent anxiolytic effects in laboratory rats.
Dose: valerian root extract 3 ml/kg; valerenic acid 3 mg/kg; diazepam 1 mg/kg; ethanol 1 ml/kg
vs: Placebo
効果: significant reduction in anxious behavior vs ethanol control
Key Statistics
7
研究数
--
参加者数
↑
Positive
B
グレード
Referenced Papers
Molecules (Basel, Switzerland)
2025
2 件の引用
Journal of ethnopharmacology
2023
34 件の引用
Phytomedicine : international …
2023
33 件の引用
Nutrients
2021
85 件の引用
GABA-modulating phytomedicines for anxiety: A systematic review of preclinical and clinical evidence.
Systematic Review
Phytotherapy research : …
2018
95 件の引用
Phytomedicine : international …
2010
148 件の引用
Medical science monitor …
2009
85 件の引用
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
一般的な使用量
- sleep:
- 100-300 mg, before bed
上限量： Not established
研究で検討された用量
| 用量 | 期間 | 効果 | N |
|---|---|---|---|
| None | -- | Positive | -- |
| Lavender essential oil fractions 3% (v/v) via inhalation | -- | Positive | -- |
| Suanzaoren decoction (SZRD) orally administered; dose not specified | -- | Positive | -- |
| valerian root extract 3 ml/kg; valerenic acid 3 mg/kg; diazepam 1 mg/kg; ethanol 1 ml/kg | -- | Positive | -- |
推奨摂取タイミング： 30-60 minutes before bed
Safety & Side Effects
報告されている副作用
- ⚠ Tingling or flushing sensation
- ⚠ Drowsiness
- ⚠ Mild shortness of breath (transient)
- ⚠ GI discomfort
既知の相互作用
- ● Anti-anxiety medications (benzodiazepines) — potential additive sedation
- ● Antihypertensives — GABA may lower blood pressure
- ● Antiepileptic drugs — may alter GABAergic signaling
耐容上限摂取量： Not established
サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。
Frequently Asked Questions
Does GABA help with 不安に伴う睡眠障害?
Based on 7 studies with 0 participants, there is moderate evidence from clinical studies that GABA may support 不安に伴う睡眠障害 management. Our evidence grade is B (Good Evidence).
How much GABA should I take for 不安に伴う睡眠障害?
Studies have used various dosages. A commonly studied range is 100-300 mg, before bed. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of GABA?
Reported side effects may include Tingling or flushing sensation, Drowsiness, Mild shortness of breath (transient), GI discomfort. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for GABA and 不安に伴う睡眠障害?
We rate the evidence as Grade B (Good Evidence). This rating is based on 7 peer-reviewed studies with 0 total participants. The overall direction of effect is positive.
Related Evidence
に関する他の成分： 不安に伴う睡眠障害
GABA 他の症状・状態について
References
- [1] Kacper Żełabowski et al.. Molecules. 2025. The Efficacy of Melatonergic Receptor Agonists Used in Clinical Practice in Insomnia Treatment: Melatonin, Tasimelteon, Ramelteon, Agomelatine, and Selected Herbs. doi:10.3390/molecules30183814 PubMed
- [2] Yue Xu et al.. J Ethnopharmacol. 2023. Lavender essential oil fractions alleviate sleep disorders induced by the combination of anxiety and caffeine in mice. doi:10.1016/j.jep.2022.115868 PubMed
- [3] Yan Yan et al.. Phytomedicine. 2023. Screening the effective components of Suanzaoren decoction on the treatment of chronic restraint stress induced anxiety-like mice by integrated chinmedomics … doi:10.1016/j.phymed.2023.154853 PubMed
- [4] Oliviero Bruni et al.. Nutrients. 2021. Herbal Remedies and Their Possible Effect on the GABAergic System and Sleep. doi:10.3390/nu13020530 PubMed
- [5] Karen Savage et al.. Phytother Res. 2018. GABA-modulating phytomedicines for anxiety: A systematic review of preclinical and clinical evidence. doi:10.1002/ptr.5940 PubMed
- [6] K Murphy et al.. Phytomedicine. 2010. Valeriana officinalis root extracts have potent anxiolytic effects in laboratory rats. doi:10.1016/j.phymed.2009.10.020 PubMed
- [7] Benjamin S Weeks. Med Sci Monit. 2009. Formulations of dietary supplements and herbal extracts for relaxation and anxiolytic action: Relarian. PubMed
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