Best Fish Oil Supplements, Scored on a Public Rubric

How we scored

Every product below is scored on six metrics, 0-10 each, with the weighting described on how we review. The criteria specific to this category:

• Combined EPA+DHA per serving — not total 'fish oil' milligrams.
• Oxidation testing with published TOTOX values (lower is fresher; under 26 is the GOED standard).
• Form — triglyceride or re-esterified triglyceride form is absorbed better than ethyl ester.
• Third-party testing for heavy metals, PCBs, and dioxins (IFOS, Friend of the Sea).
• Sustainability — MSC or Friend of the Sea certification where applicable.
• Price per gram of combined EPA+DHA.

What to know before buying

• Common dosing: 1-2g combined EPA+DHA per day for general use. Higher doses (2-4g) are used in cardiovascular-targeted trials but should be discussed with a doctor.
• Fish-burp aftertaste usually signals oxidation. Store in the fridge after opening, even if the label doesn't require it.
• Algae-based omega-3 is a vegetarian option; the DHA content is comparable to fish, EPA content is lower.

Our picks

#1Best overall for research transparencyBest overall for research transparency

Nordic Naturals — Ultimate Omega

Key specs: 1,280mg combined EPA+DHA per 2-softgel serving, triglyceride form, IFOS 5-star

$32.49·View on Amazon$39.9519% off

Pros

• IFOS 5-star rating across batches — lowest heavy metal, PCB, and oxidation marks
• Triglyceride form
• Published TOTOX values

Cons

• Higher per-gram cost than commodity fish oil
• Lemon flavoring — not a dealbreaker but worth noting

Nordic Naturals — Ultimate Omega

Rubric score

8.8/10

• Third-party testing10/10
• Bioavailability9/10
• Clinical evidence9/10
• Value6/10
• Brand transparency10/10
• Form & absorption9/10

$32.49·View on Amazon$39.9519% off

#2Best value per gram EPABest value per gram EPA+DHA

Sports Research — Triple Strength Omega-3 Fish Oil

Key specs: 1,040mg EPA+DHA per 2-softgel serving, triglyceride form, IFOS tested

$53.95·View on Amazon

Pros

• Strong EPA+DHA dose per serving at a lower per-gram cost
• IFOS tested batches
• MSC-certified wild-caught sourcing

Cons

• Flavor less refined than premium competitors
• Fewer published sustainability details than category leaders

Sports Research — Triple Strength Omega-3 Fish Oil

Rubric score

8.2/10

• Third-party testing8/10
• Bioavailability8/10
• Clinical evidence8/10
• Value9/10
• Brand transparency8/10
• Form & absorption8/10

$53.95·View on Amazon

#3Best for high-dose EPABest for high-dose EPA+DHA in few softgels

Carlson Labs — Carlson Elite Omega-3 Gems

Key specs: 1,600mg EPA+DHA per 2-softgel serving, triglyceride

$42.42·View on Amazon

Pros

• Highest EPA+DHA per softgel in the category
• Established brand with multi-decade track record

Cons

• Not formally IFOS-certified at batch level on all lots
• Larger softgels can be uncomfortable to swallow

Carlson Labs — Carlson Elite Omega-3 Gems

Rubric score

7.8/10

• Third-party testing7/10
• Bioavailability9/10
• Clinical evidence8/10
• Value7/10
• Brand transparency7/10
• Form & absorption9/10

$42.42·View on Amazon

#4Best trusted mainstream brandBest trusted mainstream brand — affordable, widely available everyday omega-3

Nature Made — Nature Made Fish Oil 1200 mg Omega-3

Key specs: 1,200mg fish oil per softgel (standard strength), from Nature Made, ~$15

$15.33·View on Amazon

Pros

• Trusted, widely available mainstream brand (Nature Made is known for its USP-verified supplement lines)
• Affordable everyday price and easy to find in most pharmacies
• Simple one-softgel serving

Cons

• Standard strength — 1,200mg fish oil is far less concentrated than the triple-strength picks, so you take more softgels for the same EPA+DHA
• Omega-3 form (triglyceride vs ethyl ester) and the exact EPA/DHA split aren't highlighted on the listing
• No premium third-party purity certification (IFOS) called out

Nature Made — Nature Made Fish Oil 1200 mg Omega-3

Rubric score

6.7/10

• Third-party testing6/10
• Bioavailability6/10
• Clinical evidence7/10
• Value8/10
• Brand transparency7/10
• Form & absorption6/10

$15.33·View on Amazon

#5Value pick with triglyceride formValue pick with triglyceride form

Viva Naturals — Viva Naturals Ultra Strength Omega-3

Key specs: 1,400mg EPA+DHA per 2 softgels, triglyceride, sustainably sourced (per brand claims)

$32.99·View on Amazon$34.956% off

Pros

• Strong EPA+DHA dose at competitive price
• Triglyceride form specified on label

Cons

• Third-party COAs are available by request but not universally published
• Sustainability claims less substantiated than certified brands

Viva Naturals — Viva Naturals Ultra Strength Omega-3

Rubric score

7.5/10

• Third-party testing6/10
• Bioavailability9/10
• Clinical evidence7/10
• Value9/10
• Brand transparency6/10
• Form & absorption8/10

$32.99·View on Amazon$34.956% off

#6Best vegan pickBest vegan pick — algae-derived DHA+EPA from a dedicated vegan brand

Deva — Deva Vegan Omega-3 DHA-EPA (Algae)

Key specs: 300mg DHA+EPA per serving from algal oil, carrageenan-free, non-GMO, 90 vegetarian/vegan softgels, ~$31

$31.99·View on Amazon

Pros

• Fully plant-based algae omega-3 — a true vegan alternative to fish oil
• From Deva, a dedicated vegan-supplement brand, with a clearly stated 300mg DHA+EPA and carrageenan-free, non-GMO labeling
• Supplies both DHA and EPA (many algae products are DHA-only)

Cons

• 300mg DHA+EPA per serving is lower potency than concentrated fish oils
• Costs more per mg of omega-3 than fish oil (algae oil is pricier to produce)
• No third-party purity certification (IFOS) stated on the listing

Deva — Deva Vegan Omega-3 DHA-EPA (Algae)

Rubric score

6.2/10

• Third-party testing5/10
• Bioavailability7/10
• Clinical evidence6/10
• Value6/10
• Brand transparency6/10
• Form & absorption7/10

$31.99·View on Amazon

Frequently asked questions