Buyer Guide · 6 min read
Nordic Naturals Ultimate Omega vs Life Extension Super Omega-3 Plus
Two of the most-respected omega-3 supplements in the US, compared head-to-head — EPA/DHA dose, sourcing, third-party testing, and price per gram.
Two of the three or four omega-3 fish oils most likely to be on a clinical nutritionist's recommendation list. Both source from the South Pacific anchovy fishery, both are triglyceride-form, both are third-party tested for purity. They differ in concentration, what's stacked alongside the fish oil, and price per gram of EPA + DHA delivered.
| Spec | Ultimate Omega 1280 mg | Super Omega-3 Plus |
|---|---|---|
| Omega-3 per serving (mg) | 1,280 | ~1,000 |
| EPA per serving (mg) | 650 | ~440 |
| DHA per serving (mg) | 450 | ~290 |
| Molecular form | Triglyceride | Triglyceride |
| Source fishery | Wild South Pacific anchovy | Wild South Pacific anchovy (sustainability-certified) |
| Added compounds | None | Krill oil + astaxanthin + sesame lignans + olive polyphenols |
| Servings per bottle | 45 (90 softgels) | 60 (120 softgels) |
| Price per serving | $0.89 | $0.62 |
| Third-party tested | IFOS 5-star (max) | Yes (in-house + third-party) |
| Flavor finish | Lemon | Unflavored softgel |
| Best for | First-time omega-3 buyers; doctor recommendations | People who want the antioxidant + krill stack in one capsule |
Nordic Naturals Ultimate Omega — the doctor's choice
Nordic Naturals built its reputation on a single deceptively boring decision: keeping the fish oil in the triglyceride molecular form, which is the form naturally found in fish. Most cheap omega-3s on the shelf are in the ethyl ester form — created during the concentration process and ~30% less absorbable.
The Ultimate Omega formula has been the same for 25 years: 1,280 mg of omega-3 per serving (650 mg EPA + 450 mg DHA), in triglyceride form, lemon-finished. No added antioxidants, no stacked compounds. Just fish oil done right.
The third-party testing is the strictest in the industry — Nordic Naturals products are IFOS 5-star certified, which is the highest available rating for purity and freshness.
Take it if: You want a pure, high-concentration omega-3 with the cleanest possible reputation. The 1,280 mg per serving hits the dose with the strongest cardiovascular evidence in two softgels per day.
Life Extension Super Omega-3 Plus — the longevity stack
Life Extension's approach is different. They start with the same triglyceride-form anchovy fish oil base, but then stack it with four additional compounds:
- Krill oil — additional EPA/DHA in phospholipid form, plus astaxanthin
- Astaxanthin — one of the most potent antioxidants in nature, naturally found in krill and pink-fleshed fish
- Sesame lignans — protect the omega-3 oils from oxidation in the bottle and in your body
- Olive polyphenols — Mediterranean-diet inspired addition; documented cardiovascular benefits
The result is a softgel that delivers slightly less concentrated EPA/DHA but layers in the antioxidants and supporting compounds that the Mediterranean dietary research suggests work together with fish oil, not in isolation.
Take it if: You want a single capsule that delivers the full Mediterranean-diet pharmacology pattern, or you're building a longevity-focused supplement stack and want to consolidate.
On price
At face value, Life Extension is cheaper per serving ($0.62 vs $0.89). But you're getting less omega-3 per serving (~1,000 mg vs 1,280 mg), so the price per gram of omega-3 is closer than the headline:
- Nordic Naturals: $0.69 per gram of omega-3
- Life Extension: $0.62 per gram of omega-3
With Life Extension you also get the krill oil, astaxanthin, and lignans. Per-dollar, Life Extension delivers more compounds — Nordic Naturals delivers more pure fish oil.
On sustainability and ethics
Both source from the South Pacific anchovy fishery (Engraulis ringens) in Peru and Chile. Both fisheries are MSC-certified or operating under sustainable yield management. Nordic Naturals' supply chain is the more transparent of the two — they publish vessel and harvest data.
The verdict
If you're new to fish oil or you want the cleanest, most-decorated omega-3 on the shelf, Nordic Naturals Ultimate Omega is the right answer. If you're building a longevity-focused stack and want to consolidate krill + astaxanthin + olive polyphenols into the same capsule, Life Extension Super Omega-3 Plus is a better fit. The clinical effect on cardiovascular and brain markers is comparable; the choice is really about what *else* you want in the softgel.