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The quick answer: most people need 250 mg–1 g of combined EPA+DHA per day for general health (EFSA sets 250 mg/day as the floor), ~1,000 mg specifically for heart health, and 2,000–3,000 mg for joints or mood (EPA-dominant). The calculator below turns your goal, your diet and your preferred form into a personal target in a few seconds.
Omega-3 Dosage Calculator (Free): Your Daily EPA+DHA Target
Top 5 Omega-3 Fish Oil Supplements — Tested & Ranked 2026
| Product | Form / Dose | Rating | Price | Best For | Buy |
|---|---|---|---|---|---|
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EDITORS CHOICE Nordic Naturals Ultimate Omega IFOS 5-star · Non-GMO | rTG (re-esterified) 1280mg EPA+DHA | ★★★★½ 4.8/5 (18,600+) | $39.95 | Triglyceride reduction | Amazon ↗ |
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BEST VALUE Carlson Labs Very Finest Fish Oil IFOS · MSC Certified | TG (natural) 1600mg EPA+DHA | ★★★★½ 4.7/5 (12,400+) | $29.98 | High-dose protocol | Amazon ↗ |
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PREMIUM Thorne Omega-3 w/ CoQ10 NSF Certified Sport | rTG Molecular Distilled 600mg EPA+DHA | ★★★★½ 4.7/5 (3,200+) | $44.00 | Heart health + energy | Amazon ↗ |
|
Sports Research Omega-3 IFOS · Non-GMO | TG Form 1250mg EPA+DHA | ★★★★½ 4.7/5 (8,700+) | $31.95 | Value rTG alternative | Amazon ↗ |
|
BUDGET PICK Viva Naturals Omega-3 Non-GMO Verified | EE (ethyl ester) 1200mg EPA+DHA | ★★★★½ 4.6/5 (24,100+) | $25.99 | Entry-level fish oil | Amazon ↗ |
Disclosure: NordVital earns a commission on Amazon purchases at no extra cost to you. Rankings based on independent testing, clinical evidence, and third-party lab reports.
The quick answer: most people need 250 mg–1 g of combined EPA+DHA per day for general health (EFSA sets 250 mg/day as the floor), ~1,000 mg specifically for heart health, and 2,000–3,000 mg for joints or mood (EPA-dominant). The calculator below turns your goal, your diet and your preferred form into a personal target in a few seconds.
Free Tool
Omega-3 dosage calculator: your daily EPA+DHA target
Answer three quick questions and get an evidence-based EPA+DHA target, the right form for you, and how to take it.
General guidance based on EPA/DHA research (NIH ODS, EFSA, AHA). Therapeutic doses for triglycerides or mood should be supervised by a doctor.
Omega-3 dosage by goal (2026)
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| Goal | Daily EPA+DHA target | EPA vs DHA | Notes |
|---|---|---|---|
| General health | 250 mg–1 g | Balanced | EFSA floor is 250 mg/day; many aim for ~1 g. Two oily-fish meals a week can cover it |
| Heart health | ~1,000 mg | Balanced | AHA figure for people with existing heart disease |
| Brain & mood | 1,000–2,000 mg | EPA-dominant (≥60% EPA) | Mood studies use EPA-heavy formulas; give it 8–12 weeks |
| Joints & inflammation | 2,000–3,000 mg | Balanced / EPA-lean | Anti-inflammatory effect needs higher intake and consistency |
| Pregnancy / nursing | 200–300 mg DHA extra | DHA-focused | For fetal brain/eye development; use a low-mercury, purity-tested form |
| High triglycerides | 2,000–4,000 mg | Balanced | Prescription-level — doctor-supervised only |
Targets are combined EPA+DHA, not total fish-oil weight. A “1000 mg fish oil” softgel often contains only ~300 mg EPA+DHA — always read the EPA and DHA line on the label. You may need 3–5 standard capsules to reach a therapeutic dose.
How to take omega-3 so it actually absorbs
High-quality omega-3 supplementation remains one of the best-supported interventions for cardiovascular health, brain function, and inflammation control. The key is using the triglyceride form (not ethyl ester) at a therapeutic dose of 2g+ EPA/DHA daily. Buy from brands with third-party IFOS certification and store in the fridge to prevent oxidation.
- Take it with a meal that has fat. Omega-3 is fat-soluble; a fatty meal massively improves absorption and cuts fishy burps.
- Prefer the triglyceride (rTG) form. It absorbs roughly 70% better than the cheaper “ethyl ester” form. The label usually says “triglyceride” or “rTG”.
- Read the EPA and DHA numbers, not the total oil. Two products at “1000 mg” can differ 3× in actual EPA+DHA.
- Look for a purity seal (IFOS or equivalent third-party testing) for low oxidation and low heavy metals.
- Vegan? Use algae oil. It is the only plant source that delivers EPA+DHA directly — flax and chia (ALA) convert at only ~5–10%.
Based on EPA/DHA absorption and dosing research (NIH ODS, EFSA, AHA, ISSN). General education, not medical advice — therapeutic doses should be supervised by a doctor.
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