Brand comparison
Nordic Naturals vs Life Extension vs Pure Encapsulations vs NOW Foods: The Omega-3 & Cardiovascular Face-Off
Omega-3 supplements are a category where quality differences matter — third-party purity testing (heavy metals, oxidation), EPA/DHA concentration per capsule, and molecular form (triglyceride vs ethyl ester) all change absorption and effect. Nordic Naturals built its brand on those specs. Life Extension, Pure Encapsulations, and NOW Foods compete on the same shelf. Here's how they actually score for cardiovascular and heart-health products on the Vyvata rubric — same 6 dimensions, applied uniformly. Read the rubric →
Head-to-head summary
| # | Brand | Avg score | Scored | Tier mix | Top product |
|---|---|---|---|---|---|
| 1 | Pure Encapsulations | 84 | 1 of 1 | 1 Elite | Pure Encapsulations EPA/DHA Essentials · 84 |
| 2 | Nordic Naturals | 83.4 | 5 of 5 | 3 Elite 2 Verified | Nordic Naturals Ultimate Omega 2X – High-Potency Fish Oil | 2150 mg EPA & DHA | Lemon Flavor, 120 Softgels · 87 |
| 3 | Life Extension | 82 | 1 of 1 | 1 Elite | Life Extension Super Omega-3 EPA/DHA · 82 |
| 4 | NOW Foods | 71 | 3 of 3 | 1 Verified 2 Standard | NOW Foods Ultra Omega-3 · 78 |
Overall winner on average score: Pure Encapsulations at 84/100 across 1 scored product.
Per-brand deep dive
Pure Encapsulationsavg 84/100 across 1 scored product
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Pure Encapsulations EPA/DHA Essentials 84/100 · Elite
[Rescored via evidence crawl] Previous score 79 → new 84.
Nordic Naturalsavg 83.4/100 across 5 scored products
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Nordic Naturals Ultimate Omega 2X – High-Potency Fish Oil | 2150 mg EPA & DHA | Lemon Flavor, 120 Softgels 87/100 · Elite
2150mg EPA+DHA in triglyceride form (superior absorption vs.
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Nordic Naturals Ultimate Omega 2X – High-Potency Fish Oil | 2150 mg EPA & DHA | Lemon Flavor, 120 Softgels 87/100 · Elite
2150 mg combined EPA + DHA per two-softgel serving in re-esterified triglyceride form (superior bioavailability vs ethyl-ester per Dyerberg Prostaglandins Leukot Essent Fatty Acids 2010).
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Nordic Naturals Ultimate Omega 86/100 · Elite
1280 mg total omega-3 (650 EPA / 450 DHA) per serving in triglyceride form — matches the anchor for this rubric.
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Nordic Naturals Omega-3 79/100 · Verified
690 mg omega-3 per serving in true triglyceride form (Neubronner et al.
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Nordic Naturals Ultimate Omega 78/100 · Verified
Nordic Naturals Ultimate Omega is one of the most rigorously-benchmarked fish oil products on the US market — 1,280mg total omega-3 per two-softgel serving (650mg EPA + 450mg DHA) in the triglyceride form (not ethyl ester), which absorbs 70% better in the D…
Life Extensionavg 82/100 across 1 scored product
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Life Extension Super Omega-3 EPA/DHA 82/100 · Elite
[Rescored via evidence crawl] Previous score 76 → new 82.
NOW Foodsavg 71/100 across 3 scored products
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NOW Foods Ultra Omega-3 78/100 · Verified
[Rescored via evidence crawl] Previous score 73 → new 78.
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NOW Foods Nattokinase 100mg – 2,000 FU | 60 Veg Caps | Circulation & Cardiovascular Support | Non-GMO 69/100 · Standard
NOW Foods is a well-established, GMP-audited manufacturer with strong in-house and third-party testing infrastructure, and this nattokinase delivers a clearly disclosed 100mg/2,000 FU dose that falls within the range used in published fibrinolytic-activity …
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NOW Foods L-Arginine Pure Powder - Nitric Oxide Precursor, 500g 66/100 · Standard
Free-form pharmaceutical-grade L-arginine powder — NO precursor with RCT support for endothelial function and blood pressure (Dong 2011 meta-analysis, 4-24 g/day).
How the scoring works
Every product is scored on six dimensions — evidence (RCT quality supporting the active ingredients at the label dose), formulation (dose adequacy, bioavailability form, redundancy), manufacturing (third-party testing, GMP, facility audits), safety (adverse-event profile, interactions, dose ceiling), transparency (dose disclosure vs proprietary blends, honest marketing), and sustainability (sourcing, packaging, corporate practice). Tier thresholds: Elite 85+, Verified 70–84, Standard 50–69, Rejected 0–49. Rejected products stay listed with reasons. Full rubric →