High-EPA fish oil, by measured EPA per serving

Last reviewed July 2026.

Of the third-party-tested fish oils we track, Viva Naturals Triple Strength Omega-3 has the most lab-measured EPA per serving — 1557 mg EPA (with 645 mg DHA). "High-EPA" generally means well over ~500 mg EPA per serving and an EPA-dominant ratio, not a 50/50 split — the profile people want when they're after EPA specifically. Here's every tested product by measured EPA, real numbers not label claims.

Carlson The Very Finest Fish Oil is #2 here by measured EPA: 956 mg EPA and 515 mg DHA per serving in tested lot 0011224. Its certificate page shows every result from that lot's report.

Certificates at a glance

The lot, the date and the measured EPA and DHA below are copied from each product's own certificate, on the basis that certificate prints (each cell names it). All 12 certificates were re-read on 2026-10-16. IFOS reports print the lot's expiry date, not a test date; iTested reports print a report date. Rows are sorted by measured EPA per serving, as in the ranking below; each row shows the certificate's own basis.

Tested fish oils by measured EPA per serving

Cost per gram uses each product's reference price: iHerb's or the maker's own store price, read on the date shown beside it on the product's cost page, which names the store. These are not Amazon prices; the price at an Amazon link may differ.

EPA/DHA are lab-measured from each product's third-party (IFOS/NSF/iTested) report — the amount in the bottle, not the label. Retailer links are paid when tagged.

What counts as "high-EPA"?

There's no legal definition, but in practice a high-EPA fish oil (a) delivers a large EPA dose per serving and (b) has an EPA:DHA ratio above 1:1 — often ~1.5:1 or higher. People seek EPA-dominant oils because much of the omega-3 research on mood and inflammation used EPA-heavy doses. This is general information, not medical advice — talk to a clinician about your own dose.

Whatever EPA level you want, you still pay per gram of omega-3 — compare the whole field in the full ranking.

FAQ

What is the highest-EPA fish oil?
Among the third-party-tested products we track, Viva Naturals Triple Strength Omega-3 has the most lab-measured EPA per serving at 1557 mg. We rank on measured EPA, not the label claim.

What is considered a high-EPA fish oil?
There's no official cutoff, but generally a product delivering well over ~500 mg EPA per serving with an EPA:DHA ratio above 1:1. EPA-dominant oils are what 'high-EPA' means.

Is high-EPA fish oil better than high-DHA?
It depends on the goal — DHA is emphasized for brain/eye and pregnancy, EPA in mood and inflammation research. Neither is universally better; match the EPA:DHA ratio to your reason for taking it, and talk to a clinician.

This page summarizes published third-party testing data and makes no health, benefit, or treatment claims. A certificate describes one tested batch, not a permanent grade.

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