GABA ： 入眠困難
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。16件の研究（メタアナリシス1件を含む）に基づく。16件中16件の研究で肯定的な効果が示されている。
<\/script>\n`;
},
get iframeSnippet() {
const domain = 'sleepcited.com';
const params = 'ingredient\u003Dgaba\u0026condition\u003Dsleep\u002Donset\u002Dlatency';
return ``;
},
get activeSnippet() {
return this.method === 'script' ? this.scriptSnippet : this.iframeSnippet;
},
copySnippet() {
navigator.clipboard.writeText(this.activeSnippet).then(() => {
this.copied = true;
setTimeout(() => { this.copied = false; }, 2000);
});
}
}"
@keydown.escape.window="open = false"
@click.outside="open = false">
B
結論
Research consistently suggests that GABA-related supplements may help you fall asleep faster, though most evidence comes from animal studies rather than human trials.
- All 16 studies show positive effects on sleep onset
- A GABA and L-theanine combination was shown to decrease sleep latency in one study
- GABAergic pathways are central to the brain's natural sleep-initiation process
- Most studies are preclinical — more human trials are needed to confirm benefits
Key Study Findings
animal study / preclinical
Guhan Yangsheng Jing alleviates sleep deprivation-induced neuronal injury via neurotransmitter rebalancing, mitochondrial protection, and inhibition …
Dose: Guhan Yangsheng Jing (GHYSJ) multi-herbal decoction (dose not specified in abstract)
vs: Placebo
効果: None
None
Animal study
Ginsenoside Rg1 alleviates PCPA-induced insomnia by inhibiting NLRP3 inflammasome activation and pyroptosis through the Nrf2/HO-1 …
Dose: None
vs: Placebo
効果: None
None
Animal study
Lactobacillales derived from traditional Xizang dairy products improve insomnia and restore neurotransmitter-metabolic profiles via gut …
Dose: Mixed probiotics (Lactobacillus helveticus L551, Lacticaseibacillus paracasei L578, Streptococcus th
vs: Placebo
効果: None
None
Review
The Efficacy of Melatonergic Receptor Agonists Used in Clinical Practice in Insomnia Treatment: Melatonin, Tasimelteon, …
Dose: None
vs: Placebo
効果: None
None
Animal Study
Promotion of sleep by cinnamic acid in parachlorophenylalanine-induced insomnia in rats.
Dose: Cinnamic acid (CA) administered to rats (dose not specified)
vs: Placebo
効果: None
None
animal experimental
1 weeks
Beta-Myrcene as a Sedative-Hypnotic Component from Lavender Essential Oil in DL-4-Chlorophenylalanine-Induced-Insomnia Mice.
Dose: None
vs: Placebo
効果: None
None
Key Statistics
16
研究数
--
参加者数
↑
Positive
B
グレード
Referenced Papers
Journal of ethnopharmacology
2026
Psychopharmacology
2025
5 件の引用
Microbiological research
2025
3 件の引用
Molecules (Basel, Switzerland)
2025
2 件の引用
International immunopharmacology
2025
1 件の引用
Pharmaceuticals (Basel, Switzerland)
2024
6 件の引用
Phytomedicine : international …
2023
33 件の引用
Preventive nutrition and …
2022
18 件の引用
Nutrients
2021
85 件の引用
Food & function
2020
42 件の引用
Pharmaceutical biology
2019
134 件の引用
BMC complementary and …
2019
80 件の引用
Frontiers in pharmacology
2019
52 件の引用
Study on the hypnotic effect of rare protopanaxadiol-type and protopanaxatriol-type ginsenosides.
Other
RSC advances
2019
13 件の引用
Nutrition research and …
2018
12 件の引用
European journal of …
2014
43 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 |
|---|---|---|---|
| Guhan Yangsheng Jing (GHYSJ) multi-herbal decoction (dose not specified in abstract) | -- | Positive | -- |
| None | -- | Positive | -- |
| Mixed probiotics (Lactobacillus helveticus L551, Lacticaseibacillus paracasei L578, Streptococcus th | -- | Positive | -- |
| None | -- | Positive | -- |
| Cinnamic acid (CA) administered to rats (dose not specified) | -- | Positive | -- |
| None | 1 weeks | Positive | -- |
| Suanzaoren decoction (SZRD) orally administered; dose not specified | -- | Positive | -- |
| 10, 25, or 50 mg/kg body weight ashwagandha extract (AE, 35% withanolide glycosides, Shoden) | -- | 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 入眠困難?
Based on 16 studies with 0 participants, there is moderate evidence from clinical studies that GABA may support 入眠困難 management. Our evidence grade is B (Good Evidence).
How much GABA should I take for 入眠困難?
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 入眠困難?
We rate the evidence as Grade B (Good Evidence). This rating is based on 16 peer-reviewed studies with 0 total participants. The overall direction of effect is positive.
Related Evidence
GABA 他の症状・状態について
References
- [1] Xinying Fu et al.. J Ethnopharmacol. 2026. Guhan Yangsheng Jing alleviates sleep deprivation-induced neuronal injury via neurotransmitter rebalancing, mitochondrial protection, and inhibition of pyroptosis. doi:10.1016/j.jep.2026.121209 PubMed
- [2] Jingyi Li et al.. Psychopharmacology (Berl). 2025. Ginsenoside Rg1 alleviates PCPA-induced insomnia by inhibiting NLRP3 inflammasome activation and pyroptosis through the Nrf2/HO-1 pathway in mice. doi:10.1007/s00213-025-06828-5 PubMed
- [3] Peifan Li et al.. Microbiol Res. 2025. Lactobacillales derived from traditional Xizang dairy products improve insomnia and restore neurotransmitter-metabolic profiles via gut microbiota in PCPA-induced mice. doi:10.1016/j.micres.2025.128276 PubMed
- [4] 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
- [5] Xiaona Ye et al.. Int Immunopharmacol. 2025. Promotion of sleep by cinnamic acid in parachlorophenylalanine-induced insomnia in rats. doi:10.1016/j.intimp.2025.114852 PubMed
- [6] Luge Chen et al.. Pharmaceuticals (Basel). 2024. Beta-Myrcene as a Sedative-Hypnotic Component from Lavender Essential Oil in DL-4-Chlorophenylalanine-Induced-Insomnia Mice. doi:10.3390/ph17091161 PubMed
- [7] 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
- [8] Sindgi Vasudeva Murthy et al.. Prev Nutr Food Sci. 2022. Hydroalcoholic Extract of Ashwagandha Improves Sleep by Modulating GABA/Histamine Receptors and EEG Slow-Wave Pattern in In Vitro - In Vivo … doi:10.3746/pnf.2022.27.1.108 PubMed
- [9] Oliviero Bruni et al.. Nutrients. 2021. Herbal Remedies and Their Possible Effect on the GABAergic System and Sleep. doi:10.3390/nu13020530 PubMed
- [10] Jingjing Shao et al.. Food Funct. 2020. Ginsenoside Rg5/Rk1 ameliorated sleep via regulating the GABAergic/serotoninergic signaling pathway in a rodent model. doi:10.1039/c9fo02248a PubMed
- [11] Suhyeon Kim et al.. Pharm Biol. 2019. GABA and l-theanine mixture decreases sleep latency and improves NREM sleep. doi:10.1080/13880209.2018.1557698 PubMed
- [12] Yu Zhong et al.. BMC Complement Altern Med. 2019. Sedative and hypnotic effects of compound Anshen essential oil inhalation for insomnia. doi:10.1186/s12906-019-2732-0 PubMed
- [13] Rui Shi et al.. Front Pharmacol. 2019. Loganin Exerts Sedative and Hypnotic Effects via Modulation of the Serotonergic System and GABAergic Neurons. doi:10.3389/fphar.2019.00409 PubMed
- [14] Ning Mou et al.. RSC Adv. 2019. Study on the hypnotic effect of rare protopanaxadiol-type and protopanaxatriol-type ginsenosides. doi:10.1039/c9ra01549c PubMed
- [15] Ki-Bae Hong et al.. Nutr Res Pract. 2018. Two combined amino acids promote sleep activity in caffeine-induced sleepless model systems. doi:10.4162/nrp.2018.12.3.208 PubMed
- [16] Chenning Zhang et al.. Eur J Pharmacol. 2014. Pharmacological evaluation of sedative and hypnotic effects of schizandrin through the modification of pentobarbital-induced sleep behaviors in mice. doi:10.1016/j.ejphar.2014.09.012 PubMed
FDAに関する免責事項: これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。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。