Panax Ginseng ： Mental Fatigue
C エビデンス 小規模研究からのエビデンスは限られていますが、いくつかの肯定的なシグナルがあります。Research suggests subjects taking Panax ginseng may experience less mental fatigue during extended cognitive testing. Active ginsenosides appear to support mental clarity and sustained visual processing energy.
<\/script>\n`;
},
get iframeSnippet() {
const domain = 'braincited.com';
const params = 'ingredient\u003Dpanax\u002Dginseng\u0026condition\u003Dmental\u002Dfatigue';
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">
C
結論
Research suggests subjects taking Panax ginseng may experience less mental fatigue during extended cognitive testing. Active ginsenosides appear to support mental clarity and sustained visual processing energy.
Key Study Findings
Review
Effects of American ginseng (Panax quinquefolius) extract on human neurocognitive function: a review.
Dose: 100-2000 mg
vs: None
Outcome: None
効果: None
None
対象集団: healthy adults and schizophrenia patients from double-blind RCTs
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
Review
The effects of twenty-one nutrients and phytonutrients on cognitive function: A narrative review.
Dose: None
vs: None
Outcome: None
効果: None
None
対象集団: None
Randomized Controlled Trial
1.0 weeks
Double-blind
Panax ginseng (G115) improves aspects of working memory performance and subjective ratings of calmness in …
Dose: 200 mg
vs: placebo
Outcome: memory
効果: None
p < 0.05
対象集団: healthy volunteers
Randomized Controlled Trial
n=27
Double-blind
Effects of Panax ginseng, consumed with and without glucose, on blood glucose levels and cognitive …
Dose: 200 mg G115 +/- 25g glucose
vs: Placebo capsules + placebo drink
Outcome: Effects of Panax ginseng, consumed with and without …
効果: None
None
対象集団: Healthy young adults, overnight-fasted
Randomized Controlled Trial
n=30
Double-blind
Single doses of Panax ginseng (G115) reduce blood glucose levels and improve cognitive performance during …
Dose: Panax ginseng G115 200mg or 400mg single dose
vs: Placebo
Outcome: Serial Sevens performance and mental fatigue
効果: 200mg improved Serial Sevens and reduced mental fatigue
<0.05
対象集団: Healthy young adults
Key Statistics
12
研究数
900
参加者数
↑
Positive
C
グレード
Referenced Papers
Nutritional neuroscience
2026
Psychopharmacology
2025
5 件の引用
The effects of twenty-one nutrients and phytonutrients on cognitive function: A narrative review.
Review
Journal of clinical …
2021
38 件の引用
Human psychopharmacology
2010
92 件の引用
Journal of psychopharmacology …
2006
154 件の引用
Journal of psychopharmacology …
2005
177 件の引用
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
一般的な使用量
- general:
- 200-400 mg/day standardized to 4-7% ginsenosides
上限量： Not established; up to 3,000 mg/day used short-term
研究で検討された用量
| 用量 | 期間 | 効果 | N |
|---|---|---|---|
| 100-2000 mg | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Mixed | -- |
| 200 mg | 1.0 weeks | Mixed | -- |
| 200 mg G115 +/- 25g glucose | -- | Neutral | 27 |
| Panax ginseng G115 200mg or 400mg single dose | -- | Positive | 30 |
推奨摂取タイミング： Morning; cycling recommended (8 weeks on, 2 weeks off)
Safety & Side Effects
報告されている副作用
- ⚠ Insomnia
- ⚠ Headache
- ⚠ Gastrointestinal discomfort
- ⚠ Changes in blood pressure
- ⚠ Rare: hypoglycemia
既知の相互作用
- ● Anticoagulants and antiplatelet drugs
- ● Antidiabetic drugs (may lower blood sugar)
- ● MAO inhibitors (may potentiate effects)
- ● Stimulants (additive stimulatory effects)
耐容上限摂取量： Not established; up to 3,000 mg/day used short-term
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 Panax Ginseng help with Mental Fatigue?
Based on 12 studies with 900 participants, there is limited but promising evidence that Panax Ginseng may support Mental Fatigue management. Our evidence grade is C (Some Evidence).
How much Panax Ginseng should I take for Mental Fatigue?
Studies have used various dosages. A commonly studied range is 200-400 mg/day standardized to 4-7% ginsenosides. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Panax Ginseng?
Reported side effects may include Insomnia, Headache, Gastrointestinal discomfort, Changes in blood pressure. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Panax Ginseng and Mental Fatigue?
We rate the evidence as Grade C (Some Evidence). This rating is based on 12 peer-reviewed studies with 900 total participants. The overall direction of effect is positive.
Related Evidence
に関する他の成分： Mental Fatigue
Panax Ginseng 他の症状・状態について
References
- [1] Lynne Bell et al.. Nutr Neurosci. 2026. Effects of American ginseng (Panax quinquefolius) extract on human neurocognitive function: a review. doi:10.1080/1028415X.2025.2555921 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] John E Lewis et al.. J Clin Transl Res. 2021. The effects of twenty-one nutrients and phytonutrients on cognitive function: A narrative review. PubMed
- [4] Jonathon L Reay et al.. Hum Psychopharmacol. 2010. Panax ginseng (G115) improves aspects of working memory performance and subjective ratings of calmness in healthy young adults. doi:10.1002/hup.1138 PubMed
- [5] Jonathon L Reay et al.. J Psychopharmacol. 2006. Effects of Panax ginseng, consumed with and without glucose, on blood glucose levels and cognitive performance during sustained 'mentally demanding' … doi:10.1177/0269881106061516 PubMed
- [6] Jonathon L Reay et al.. J Psychopharmacol. 2005. Single doses of Panax ginseng (G115) reduce blood glucose levels and improve cognitive performance during sustained mental activity. doi:10.1177/0269881105053286 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。