We Researched Over 20 Fish Oil Supplements — These Are the Best Ones

Nordic Naturals Ultimate Omega supplements rate the best overall because four of the five dietitians we talked to recommended Nordic Naturals as their go-to brand for omega-3 supplements, both for themselves and their clients. One reason is that the company posts third-party testing results directly on its website for transparency.

Nordic Naturals Ultimate Omega also has an ideal dose of omega-3s, according to some dietitians. One supplement delivers 1,280 milligrams (mg) of total omega-3s, 650 mg of eicosapentaenoic acid (EPA), and 450 mg of docosahexaenoic acid (DHA). Jen Scheinman, RD, the owner of Next Jen Health, says, “I like taking about 1 to 2 grams of combined EPA and DHA in a fish oil supplement,” making the Ultimate Omega supplement a good choice for getting a dose in this range from a trusted brand.

Garden of Life focuses on sustainability and processes its products in LEED- and Green-e-Energy–certified facilities that use renewable energy. The company supports both the health of the environment and the health of its consumers. Garden of Life fish oil supplements are certified organic, non-GMO, and carbon neutral.

The Minami Omega-3 Fish Oil supplement costs $32.89 for a bottle with 60 servings. One soft gel provides 850 mg of total omega-3 fatty acids, 590 mg of EPA, and 130 mg of DHA. 

MegaFood Omega 3-6-9 supplement is made from algae oil and ahiflower, making it a fish-free alternative for vegans and vegetarians. Not all plant-based omega-3s are easily absorbed, but MegaFood uses an algal DHA to provide an easier-to-absorb plant-based omega-3 supplement.

One bottle provides 60 vegan capsules, with 30 servings per bottle, costing $24.29. Each serving of MegaFood Omega 3-6-9 provides 120 mg of omega-6, 44 mg of omega-9, and 600 mg of total omega-3s, with 285 mg of alpha-linolenic acid (ALA), 150 mg of DHA, and 125 mg of SDA.

Many fish oil supplements recommend a serving size of two softgels, but Now Ultra Omega-3 Fish Oil’s serving size is just one softgel. One serving provides 500 mg of EPA and 250 mg of DHA. Each bottle contains 180 servings for $26.03.

Now Foods provides transparency on its website, with information about ingredient sources, manufacturers, and testing.

Mother’s Promise was a clear winner for best prenatal omega-3 supplement. These ingredients are sustainably sourced from wild-caught fish and certified by the Friends of the Sea organization. The supplements are third-party tested for purity and potency. One bottle contains 60 servings for $24.25. Each serving contains 700 mg of total omega-3s and 600 mg of DHA.

Be sure to talk with your doctor before taking any supplements while pregnant.

Getting some kids to eat fish, let alone supplements, can be challenging. L’il Critters Omega-3 Gummy vitamins can be a good option for picky eaters. The company was awarded a 2021 ChefsBest Excellence award for its naturally sourced citrus-berry flavor. The vitamin has no artificial flavors or sweeteners, high fructose corn syrup, synthetic dyes, gluten, or dairy.

Your child might want to eat this like candy, but the recommended serving size depends on their age: One gummy is recommended for 2- and 3-year-olds, and two gummies for 4-year-olds and older children. Each bottle contains 60 to 120 servings and costs $12.48. There are 50 mg of total omega-3 fatty acids, including 25 mg of DHA/EPA and 25 mg of ALA, per gummy. This supplement also provides vitamins A, C, D, and E. 

Carlson Maximum Omega 2000 supplements provide a more concentrated formula to make it the most cost-effective choice.

Alexandria Hardy, RDN, the CEO of Pennsylvania Nutrition Services, calls this supplement an “excellent choice because it is highly concentrated, meaning it provides more omega-3s and less filler in each dose.”

Each bottle contains 60 softgels, with 30 servings for $33.92. There are 2,000 mg of total omega-3 fatty acids, with 1,250 mg of EPA and 500 mg of DHA, per serving. If 2,000 mg is too high a dose for you, consider taking one softgel to halve the serving.

Fish oil supplements have a bad reputation for leaving a fishy aftertaste and causing fishy burps. An oil may sound like an even fishier idea than a capsule, but Thorne Omega Superb is formulated with a lemon-berry flavor for improved taste. You can take it alone or mix it into drinks and food.

Each teaspoon provides 1,325 mg of total omega-3 fatty acids, with 700 mg EPA and 440 mg of DHA. Thorne supplements are IFOS-certified for purity, potency, and freshness.  

Fish oil softgels tend to be fairly large, ranging from 1/2 to 1 inch, which can be a challenge if you have trouble swallowing large pills or just don’t like taking them. Carlyle Mini Omega-3 Fish Oil softgels could be a perfect alternative since they are smaller and easier to swallow.

Each bottle contains 200 mini softgels (66 servings) for $22.99. A serving size of three mini softgels has about 1,245 mg of total omega-3 fatty acids with 58 to 84 percent EPA and 22 to 38 percent DHA. Carlyle uses high-quality, ethically sourced ingredients. It packages and tests its supplements in the United States.