Bronson Antarctic Krill Oil 1000 mg Review

200 mg per 2-softgel serving: the Supplement Facts panel lists 120 mg EPA and 80 mg DHA (total omega-3 200 mg), plus 200 mg phospholipids and 200 mcg astaxanthin. That is in line with Sports Research (196 mg in one softgel) and NOW Neptune NKO (195 mg per 2 softgels). One detail matters: the panel footnotes EPA and DHA 'As Ethyl Esters/Triglycerides', and 200 mg of phospholipids is the lowest of the two-softgel krill picks, so the label does not show how much of the EPA and DHA is phospholipid-bound — the main reason people choose krill. An earlier version of this review said Bronson does not disclose EPA and DHA; that was wrong.

Legitimate, with a long pedigree. Bronson was founded in 1960 in California by a group of pharmacists who sold their supplements directly to physicians, and the company still manufactures in an FDA-registered, cGMP-certified facility (Long Island, NY) with third-party testing for purity and potency. It's a genuine mid-market value brand with 60+ years of history — not a fly-by-night Amazon white-label. The krill oil is heavy-metal tested, non-GMO, gluten-free, and soy-free. What you're trading down on versus the premium tier is public proof (no batch COA, no sustainability certificate), not basic legitimacy.

Mostly because it skips the cost drivers that premium krill brands pay for: branded traceable krill sources (Superba from Aker, NKO from Neptune), MSC or Friend of the Sea sustainability certification, and prominent third-party potency labelling. Bronson uses '100% Antarctic krill' without naming a branded source or carrying a sustainability mark, and declares less phospholipid on the panel (200 mg). None of that necessarily makes the oil worse — but the certifications and traceability you pay extra for at the top of the list are exactly what Bronson leaves off to hit the lowest price. For a value-first buyer that's a fair trade; for a buyer who needs auditable sourcing it isn't.

Rarely — that's krill oil's structural advantage and Bronson delivers it. Krill oil carries phospholipids and naturally occurring astaxanthin (the antioxidant that resists oxidation), and users consistently report small, easy-to-swallow softgels with no fishy repeat. One honest caveat from reviews: while the burps are absent, several buyers note a strong marine 'dirty aquarium' smell when they open the bottle. That's cosmetic, not a sign of rancidity (astaxanthin keeps the oil stable), but it's worth knowing if smell sensitivity matters to you.

Probably, but it's not certified — and that distinction matters here. The global Antarctic krill fishery as a whole is managed under CCAMLR with conservative quotas (~1% of estimated biomass per year), so any Antarctic krill is drawn from one of the better-managed marine fisheries. But Bronson's listing carries no MSC or Friend of the Sea certification and names no traceable branded source, so you can't independently audit this specific product's chain of custody the way you can with Sports Research (MSC) or NOW Neptune (Friend of the Sea). If verified sustainability is a priority, those picks are the safer buy.

Yes — this applies to every krill oil, Bronson included. Krill are crustaceans (tiny shrimp-like animals), and krill oil contains residual crustacean proteins that can trigger reactions in shellfish-allergic people. Most krill oil is processed to minimise allergenic protein, but documented allergic reactions exist in the literature. If you have any shellfish allergy, do not buy Bronson or any krill product — switch to a vegan algal-oil omega-3, which delivers the same EPA+DHA with zero crustacean exposure.

1. [1] Ramprasath 2013 PMID 24304605 — Enhanced increase of omega-3 index in healthy individuals with response to 4-week n-3 fatty acid supplementation from krill oil versus fish oil. Head-to-head trial: krill oil raised the Omega-3 Index more than an equivalent dose of fish oil over 4 weeks, supporting the phospholipid-delivery advantage of krill — though the effect size is modest, and Bronson's label (200 mg phospholipids, EPA/DHA declared as esters) does not show how much of its omega-3 carries it.
2. [2] Ulven 2011 PMID 21042875 — Metabolic effects of krill oil are essentially similar to those of fish oil but at lower dose of EPA and DHA, in healthy volunteers. Krill oil produced metabolic effects and plasma EPA+DHA increases comparable to fish oil despite a lower absolute EPA+DHA dose — direct evidence for krill's per-milligram phospholipid edge, while underscoring how little EPA+DHA krill actually contains (200 mg per Bronson serving).
3. [3] Maki 2009 PMID 19854375 — Krill oil supplementation increases plasma concentrations of eicosapentaenoic and docosahexaenoic acids in overweight and obese men and women. Krill oil raised plasma EPA+DHA comparably to menhaden (fish) oil at a similar omega-3 dose, confirming bioequivalence of the phospholipid form — the basis for treating any legitimate krill, Bronson included, as a real (if expensive) omega-3 source.
4. [4] Harris 2004 PMID 15208005 — The Omega-3 Index: a new risk factor for death from coronary heart disease?. Established the Omega-3 Index (RBC EPA+DHA %) as a cardiac-risk marker, with an Index above 8% tied to the lowest CHD-death risk — the endpoint that justifies tracking actives intake, and the reason the 200 mg EPA+DHA per Bronson serving matters more than the '1000 mg' on the front.
5. [5] Mozaffarian 2011 PMID 22051327 — Omega-3 fatty acids and cardiovascular disease: effects on risk factors, molecular pathways, and clinical events. Comprehensive omega-3 cardiovascular review establishing dose-dependent triglyceride reduction across the 2-4 g/day combined EPA+DHA range — the literature behind Bronson's heart-health claim, and a reminder that 200 mg EPA+DHA per serving is far below that range.
6. [6] Tou 2007 PMID 17345959 — Krill for human consumption: nutritional value and potential health benefits. Comprehensive review of krill composition documenting the phospholipid-bound EPA+DHA structure and naturally occurring astaxanthin that give krill oil its oxidative stability — the mechanistic basis for krill's no-burp, rancidity-resistant profile (and why the bottle smell isn't a spoilage signal).