DHA: what it does, by goal, and the dose that worked
What the 289 human studies of DHA we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.
What it does, by goalMembersThe top 5 of 6 goals
| Goal | What the studies show | Studies | Dose that worked |
|---|---|---|---|
| Improved in studies 59 studies, 22 showed an improvement, 10 found none, 6 pooled analyses | 59 | 250 mg | |
| Improved in studies 52 studies, 19 showed an improvement, 12 found none, 10 pooled analyses | 52 | 860 mg | |
| Improved in studies 54 studies, 15 showed an improvement, 13 found none, 10 pooled analyses | 54 | 30 mg | |
| Too few studies 10 studies, 1 showed an improvement, 1 found none | 10 | – | |
| No effect in studies 70 studies, 29 showed an improvement, 23 found none, 9 pooled analyses | 70 | 120 mg | |
| No effect in studies 67 studies, 14 showed an improvement, 26 found none, 10 pooled analyses | 67 | 250 mg |
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Products – highest ranked firstMembersThe top 3 of 8
Dose and safetyThe dose that worked and the upper limit
The studies taken by mouth that showed an improvement gave 30 mg to 6.6 g a day.
Biohacker panelMembersWhat our 10 biohackers say about DHA
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Questions people askMembersAnswered from the figures on this page
What is DHA good for?
Answer for members.
How much DHA a day?
Answer for members.
Can I take DHA with my meds?
Answer for members.
Members see the answers, checked against their own meds and goals. Start My 7-Day Free Trial →
Educational, not medical advice. Figures come from the human studies on PubMed we have graded; a study counts for a form when it names the form it used. Updated as new studies arrive. How we grade →