Is 1000 mg of fish oil a day safe?
1,000 milligrams of fish oil holds roughly 300 milligrams of EPA and DHA, as fish oil is typically about 30% EPA and DHA; the label's EPA and DHA lines give the exact amount. That is within the FDA's guide of up to 5,000 milligrams (5 grams) a day of EPA and DHA combined from supplements.
General information, not medical advice. Check with a doctor or pharmacist before taking a supplement, especially if you are pregnant or breastfeeding, take any medicine, or are under 18.
The figures
| Amount checked | 1,000 mg |
|---|---|
| EPA and DHA in it (estimate) | about 300 mg |
| Answer | Within the FDA guide |
| Compared with | The FDA's guide of up to 5,000 milligrams (5 grams) a day of EPA and DHA combined from supplements |
| Share of the limit | 6% of the limit |
| Adults need (US, NIH) | No set daily amount for EPA and DHA (the adequate intake for plant ALA is 1.6 grams for men and 1.1 grams for women) |
| Adults need (UK, NHS) | No set amount; the NHS advises at least 2 portions of fish a week, 1 of them oily |
Good to know
- Fish oil is not all omega-3: a standard 1,000 milligram fish oil capsule holds about 300 milligrams of EPA and DHA, so check the EPA and DHA lines on the label. High doses can add to the effect of blood thinners such as warfarin.
Quick answers
- Is 1000 mg of fish oil a day safe?
- 1,000 milligrams of fish oil holds roughly 300 milligrams of EPA and DHA, as fish oil is typically about 30% EPA and DHA; the label's EPA and DHA lines give the exact amount. That is within the FDA's guide of up to 5,000 milligrams (5 grams) a day of EPA and DHA combined from supplements.
- What is the upper limit for omega-3 (EPA and DHA)?
- US: The FDA's guide of up to 5,000 milligrams (5 grams) a day of EPA and DHA combined from supplements.
Sources
- NIH Office of Dietary Supplements fact sheet
https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/ - NHS vitamins and minerals guidance
https://www.nhs.uk/conditions/vitamins-and-minerals/others/
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More on omega-3 (EPA and DHA)
- Omega-3 and fish oil (EPA and DHA): what it does and how much you need
- How much fish oil is too much? Is 3000 mg a day OK?