How much does the best Omega-3 index supplement cost?

NOW Foods, DHA-500 Fish Oil, 180 Softgels works out at $0.21 per serving. $0.21 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.15 per serving.

Does DoseRank get paid to rank a product first?

No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.

The short answer · Omega-3 index

Take docosahexaenoic acid (dha) & eicosapentaenoic acid (epa) for omega-3 index. This is the one to buy.

NOW Foods, DHA-500 Fish Oil, 180 Softgels

4.9· 12,391 ratings· $0.21/serving

DoseRank score85

Docosahexaenoic Acid (DHA) 500 mg — inside the studied 500-2000 mg window

Of 1,492 products scored for Omega-3 index, NOW Foods, DHA-500 Fish Oil, 180 Softgels ranks #1 with a DoseRank score of 85. Docosahexaenoic Acid (DHA) and Eicosapentaenoic Acid (EPA) are the strongest evidence signals for this outcome.

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Cheaper alternative$0.15 per servingNOW Foods, Ultra Omega-3 Fish Oil, 180 Softgels

Retailer links may be affiliate links. Rankings and placement are never paid.

The form“Why Docosahexaenoic Acid (DHA) & Eicosapentaenoic Acid (EPA)?”

Docosahexaenoic Acid (DHA) and Eicosapentaenoic Acid (EPA) are the strongest evidence signals for this outcome.

Docosahexaenoic Acid (DHA)The pick
Strong evidence · 500 mg
Long-chain omega-3 from fatty fish and algae; the brain and retina's main structural fat, making it the key omega-3 for cognitive and eye health.
Eicosapentaenoic Acid (EPA)The pick
Strong evidence · 250 mg
A 20-carbon marine omega-3 most active against high triglycerides and inflammation; often concentrated apart from DHA to target cardiovascular endpoints.
Omega-3
Strong evidence · 190 mg
Family of essential polyunsaturated fats including ALA, EPA, and DHA; supports heart, brain, and inflammation balance, with EPA and DHA the most active forms.

Buy the #1 pick

The dose“Is the dose actually effective?”

1 of 2 dosed ingredients land in the studied range. Docosahexaenoic Acid (DHA) at 500 mg lands inside the studied 500-2000 mg window.

Docosahexaenoic Acid (DHA)

Studied window 500-2000 mg · this pick 500 mg

Eicosapentaenoic Acid (EPA)

Studied window 500-4000 mg · this pick 250 mg

The ranking“Why should I trust this pick?”

Strong trust signals — consistently high marks from verified buyer ratings. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.

1,492 products scored
Never paid placement
Evidence level: Strong · 96
179 brands
16 ingredients

See the full analysis — every score, every product How the ranking works

The price“Can I do better than $0.21 a serving?”

$0.21 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.15 per serving.

2
NOW Foods, Ultra Omega-3 Fish Oil, 180 SoftgelsScore 85 · $0.15/serving
iHerb
3
NOW Foods, Ultra Omega-3 Fish Oil, 90 Softgels (1,000 mg per Softgel)Score 85 · $0.17/serving
iHerb

Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.

Ready?

The #1 pick is $0.21 a serving.

NOW Foods, DHA-500 Fish Oil, 180 Softgels — in stock at a tracked retailer.

View on iHerb

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Questions

Frequently asked

NOW Foods, DHA-500 Fish Oil, 180 Softgels ranks #1 for Omega-3 index with a DoseRank score of 85. The score blends clinical strength, evidence, dose fit, trust signals and value across 1,492 products scored for this outcome.

Frequently asked