Omega-3 Fatty Acids for Insomnia
A StrongBased on 92 studies (9 meta-analyses, 18 RCTs) with 37,338 total participants. 66/92 studies show positive effects.
Key Statistics
92
Studies
37338
Participants
Positive
Grade
Referenced Papers
Dosage & Usage
Commonly Used Dosages
- sleep:
- 600-1,000 mg DHA/day
- general:
- 250-500 mg EPA+DHA/day
Upper limit: 3,000 mg/day EPA+DHA
Dosages Studied in Research
| Dosage | Duration | Effect | N |
|---|---|---|---|
| Mediterranean diet (high adherence vs. low adherence); polyphenols, omega-3, fiber as key components | -- | Positive | -- |
| Ashwagandha extract 600 mg/day (prior to discontinuation) | -- | Negative | 1 |
| 125 mg Zenroot (Ashwagandha with 1.5% total withanolides) daily | 12 weeks | Positive | 90 |
| 60 and 100 mg/kg (mice); 100 and 200 µg/mL (HT-22 cells); withanolide A 1.56 and 3.12 µg/mL | -- | Positive | -- |
| flaxseed powder 20 g/day for 8 weeks | 8 weeks | Positive | 68 |
| Not applicable (Mendelian randomization using genetic instruments/SNPs) | -- | Positive | -- |
| None | -- | Neutral | -- |
| None | -- | Positive | -- |
Best taken: With a meal; morning or evening
Safety & Side Effects
Reported Side Effects
- ⚠ Fishy aftertaste or burps
- ⚠ GI upset
- ⚠ Diarrhea
- ⚠ Easy bruising at high doses
Known Interactions
- ● Blood thinners (warfarin) — omega-3 may enhance anticoagulant effects
- ● Blood pressure medications — additive hypotensive effects
- ● Orlistat — may reduce omega-3 absorption
Tolerable upper intake: 3,000 mg/day EPA+DHA
Always consult your healthcare provider before starting any supplement.
Frequently Asked Questions
Does Omega-3 Fatty Acids help with Insomnia?
How much Omega-3 Fatty Acids should I take for Insomnia?
Are there side effects of Omega-3 Fatty Acids?
How strong is the evidence for Omega-3 Fatty Acids and Insomnia?
Related Evidence
Other ingredients for Insomnia
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.