オメガ3脂肪酸 ： 男性型・女性型脱毛症（AGA）
A合計19,624名の参加者を対象とした71件の研究（メタアナリシス8件、RCT 9件を含む）に基づく。71件中58件の研究で肯定的な効果が示されている。
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A
結論
Research suggests that omega-3 fatty acids may support hair health as part of a broader nutritional approach to androgenetic alopecia, though they are rarely studied as a standalone solution.
- 71 studies with nearly 20,000 participants, including 8 meta-analyses
- 82% of studies show positive effects on hair health
- Typically studied as part of multi-nutrient regimens rather than alone
- Anti-inflammatory properties may contribute to scalp health and hair growth
Key Study Findings
review
Oral Minoxidil for Alopecia Treatment: Risks, Benefits, and Recommendations.
Dose: Oral minoxidil: women 1.25 mg/day starting dose (range 0.625-5 mg/day); men 2.5 mg/day (range 1.25-5
vs: Placebo
効果: Comparable efficacy to topical minoxidil; hypertrichosis 24%, shedding 16-22%, peripheral edema 2%
None
narrative review
Herbal Remedies for Hair Loss: A Review of Efficacy and Safety.
Dose: varies by remedy and study
vs: Placebo
効果: None
None
preclinical animal/in vitro study
Ashwagandha (Withania somnifera (L.) dunal) root extract containing withanolide a alleviates depression-like behavior in mice …
Dose: 60 and 100 mg/kg (mice); 100 and 200 µg/mL (HT-22 cells); withanolide A 1.56 and 3.12 µg/mL
vs: Placebo
効果: None
None
review
Unraveling the connection between the Mediterranean diet and sleep health: from biological mechanisms to clinical …
Dose: Mediterranean diet (high adherence vs. low adherence); polyphenols, omega-3, fiber as key components
vs: Placebo
効果: None
None
review
[Nutrition in improving sleep quality and fighting insomnia].
Dose: tryptophan, carbohydrates, omega-3, vitamins (B6, B12, folate, niacin, D, C, beta-carotene), mineral
vs: Placebo
効果: None
None
systematic review
n=1658
Double-blind
Effects of dietary supplements on androgenetic alopecia: a systematic review and network meta-analysis.
Dose: various dietary supplements (Nutrafol, apple extract, tocotrienols, pumpkin seed oil, Cistanche/Lami
vs: Placebo
効果: None
None
Key Statistics
71
研究数
19624
参加者数
↑
Positive
A
グレード
Referenced Papers
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Effects of dietary supplements on androgenetic alopecia: a systematic review and network meta-analysis.
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Ophthalmology
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Current neuropharmacology
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Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis.
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The effectiveness of combination therapies for androgenetic alopecia: A systematic review and meta-analysis.
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Observational
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Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
一般的な使用量
- general:
- 250-500 mg EPA+DHA/day
- hairloss:
- 1,000-2,000 mg/day
上限量： 3,000 mg/day EPA+DHA
研究で検討された用量
| 用量 | 期間 | 効果 | N |
|---|---|---|---|
| Oral minoxidil: women 1.25 mg/day starting dose (range 0.625-5 mg/day); men 2.5 mg/day (range 1.25-5 | -- | Positive | -- |
| varies by remedy and study | -- | Positive | -- |
| 60 and 100 mg/kg (mice); 100 and 200 µg/mL (HT-22 cells); withanolide A 1.56 and 3.12 µg/mL | -- | Positive | -- |
| Mediterranean diet (high adherence vs. low adherence); polyphenols, omega-3, fiber as key components | -- | Positive | -- |
| tryptophan, carbohydrates, omega-3, vitamins (B6, B12, folate, niacin, D, C, beta-carotene), mineral | -- | Positive | -- |
| various dietary supplements (Nutrafol, apple extract, tocotrienols, pumpkin seed oil, Cistanche/Lami | -- | Positive | 1658 |
| Folic acid supplementation (dose not specified; timing of initiation pre- vs post-conception assesse | -- | Positive | 480 |
| Ashwagandha extract 600 mg/day (prior to discontinuation) | -- | Negative | 1 |
推奨摂取タイミング： With meals containing fat for optimal absorption; split doses if over 1,000 mg
Safety & Side Effects
報告されている副作用
- ⚠ Fishy aftertaste or burping
- ⚠ Mild gastrointestinal upset (nausea, diarrhea)
- ⚠ Possible increased bleeding time at high doses
- ⚠ Unpleasant body odor at very high doses
既知の相互作用
- ● Anticoagulants (warfarin) and antiplatelet drugs (may increase bleeding risk)
- ● Blood pressure medications (additive hypotensive effect)
- ● Orlistat (reduces omega-3 absorption)
耐容上限摂取量： 3,000 mg/day EPA+DHA
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 オメガ3脂肪酸 help with 男性型・女性型脱毛症（AGA）?
Based on 71 studies with 19,624 participants, there is strong evidence from multiple clinical trials that オメガ3脂肪酸 may support 男性型・女性型脱毛症（AGA） management. Our evidence grade is A (Strong Evidence).
How much オメガ3脂肪酸 should I take for 男性型・女性型脱毛症（AGA）?
Studies have used various dosages. A commonly studied range is 250-500 mg EPA+DHA/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of オメガ3脂肪酸?
Reported side effects may include Fishy aftertaste or burping, Mild gastrointestinal upset (nausea, diarrhea), Possible increased bleeding time at high doses, Unpleasant body odor at very high doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for オメガ3脂肪酸 and 男性型・女性型脱毛症（AGA）?
We rate the evidence as Grade A (Strong Evidence). This rating is based on 71 peer-reviewed studies with 19,624 total participants. The overall direction of effect is positive.
Related Evidence
に関する他の成分： 男性型・女性型脱毛症（AGA）
オメガ3脂肪酸 他の症状・状態について
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。