Faulty reasoning signals

• Confirmation Bias - 5% (51 hits)
• Anchoring Bias - 0%
• Availability Heuristic - 2.5% (25 hits)
• Representativeness Heuristic - 0%
• Hindsight Bias - 1.9% (19 hits)
• Overconfidence Bias - 0.7% (7 hits)
• Framing Effect - 2.1% (21 hits)
• Loss Aversion - 0%
• Status Quo Bias - 1.8% (18 hits)
• Sunk Cost Effect - 0%
• Optimism Bias - 10.7% (109 hits)
• Pessimism Bias - 5.3% (54 hits)

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5 Best Fish Oil Supplements to Boost Your Omega-3s in 2026, According to Dietitians

If you don’t eat cold-water fatty fish and other seafood, or plant-based foods, such as nuts, seeds, and plant oils often, omega-3 supplementation through fish oil is an easy and helpful way to increase your intake and get support for heart, eye, and brain health, and in lowering inflammation and cholesterol.

When rounding up the best fish oil supplements, we considered the following factors:

* **Quality:** In addition to ingredient quality, we evaluated the company’s testing and manufacturing processes.

The products selected are made by companies that provide objective measures of trust, such as third-party lab-validated supplements.

* **Fish oil source:** We prioritized supplements with oil from smaller fish because they’re <hl-trusted-source source="Food and Drug Administration (FDA)" rationale="Governmental authority"><a href="https://www.fda.gov/food/consumers/advice-about-eating-fish" data-type="link" data-id="https://www.fda.gov/food/consumers/advice-about-eating-fish" target="_blank" rel="noopener noreferrer" class="content-link css-kxhged">typically lower</a></hl-trusted-source> <strong></strong>in mercury than larger fish.

* **Certifications: </strong>We prioritized products with additional certifications from independent organizations to help ensure quality, transparency, and safety beyond third-party testing.

However, we also included many products that use other methods to verify quality.

* **Tester reviews: </strong>Our team tried many of the supplements on our list and shared firsthand feedback to help us decide which products to include.

* **Price:** We included products to suit a variety of budgets.

### What to consider when shopping for a fish oil supplement

* **Supplement Quality:** Choose supplements without fillers or artificial <a href="https://www.healthline.com/nutrition/how-to-read-food-labels/" class="content-link css-kxhged">ingredients</a>, and look for third-party certifications from organizations like IFOS, NSF International, or USP International.

* **Omega-3 Content:** Aim for <hl-trusted-source source="Wiley" rationale="Peer reviewed journal"><a href="https://efsa.onlinelibrary.wiley.com/doi/10.2903/j.efsa.2012.2815" target="_blank" rel="noopener noreferrer" class="content-link css-kxhged">250 to 500 mg</a></hl-trusted-source> <strong></strong>of combined <a href="https://post.healthline.com/nutrition/3-types-of-omega-3" target="_blank" rel="noopener noreferrer" class="content-link css-kxhged">EPA and DHA</a> per serving.

Some products also contain <a href="https://post.healthline.com/nutrition/alpha-lipoic-acid" target="_blank" rel="noopener noreferrer" class="content-link css-kxhged">ALA</a>, a plant-based omega-3.

* **Serving Size:** Check if the recommended dose requires multiple capsules or a single serving to fit your preference.

* **Fish Oil Source:** Prefer fish oil derived from smaller, sustainably caught fish such as <a href="https://www.healthline.com/health/food-nutrition/are-sardines-good-for-you/" class="content-link css-kxhged">sardines</a> and anchovies, which <hl-trusted-source source="Food and Drug Administration (FDA)" rationale="Governmental authority"><a href="https://www.fda.gov/food/consumers/advice-about-eating-fish" target="_blank" rel="noopener noreferrer" class="content-link css-kxhged">typically have</a></hl-trusted-source> lower <a href="https://www.healthline.com/nutrition/mercury-content-of-fish" data-type="link" data-id="https://www.healthline.com/nutrition/mercury-content-of-fish" class="content-link css-kxhged">mercury levels</a>.

* **Supplement Type:** Fish oil supplements come in various forms — softgels, liquids, or gummies — so choose based on your personal preference.

* **Freshness: You** can purchase from reputable brands that test for oxidation.

It’s wise to always check expiration dates and avoid large bulk purchases to ensure freshness.

»MORE: Learn about the benefits of fish oil, here.

### Useful supplement shopping guides for supplements

* How to choose high-quality vitamins and supplements

* How to read supplement labels like a pro

* Try it or toss it?

The supplements you need and the ones you can skip

### Frequently asked questions about fish oil supplements

**Should you take fish oil every day?

**

You can take fish oil every day.

However, taking high doses of fish oil (over 5,000 mg per day) can lead to an increased risk of excessive bleeding in some people.

Most health organizations recommend consuming 250 to 500 mg of combined EPA and DHA per day, with slight variations depending on your age and health status.

For ALA, the recommended daily intake is 1.1 g for women and 1.6 g for men.

**Which fish oil supplement is best?

**

Nordic Naturals is our top pick for the best omega-3 brand.

Its Ultimate Omega supplement is third-party tested and Friend of the Sea certified, and it also provides a COA for all products on its website.

Look for fish oil derived from wild-caught, sustainably sourced fatty fish lower in mercury, such as mackerel, anchovies, or sardines.

Some people might also prefer cod liver oil, as it provides other important nutrients besides omega-3s, including vitamins A and D.

**Is it better to take omega-3 or fish oil?

**

In addition to providing omega-3 fatty acids, some types of fish oil (like cod liver oil) may also contain other nutrients, such as vitamins A and D.

This may be appealing if you’re taking these vitamins separately and looking for a simple way to streamline your supplement routine.

But while fish oil is one type of omega-3 supplement, there are several other varieties that may be a better fit, depending on your preferences.

For example, a plant-based omega-3 supplement might be a better option for those who prefer to avoid fish.

In fact, research suggests that algae-based omega-3 supplements may be as effective as fish oil at increasing DHA levels.

**What are the benefits of taking fish oil?

**

Fish oil may offer several potential health benefits:

* **Cholesterol:** Omega-3s are mainly used to lower triglycerides, especially at higher prescription doses.

According to a 2021 study, higher blood levels of DHA could be linked to lower LDL (bad) cholesterol levels.

However, more research is needed.

* **Inflammation:** DHA and EPA may reduce inflammation, with DHA possibly having a broader anti-inflammatory effect.

* **Memory:** Some fish oil supplements also contain a compound called CoQ10, like Thorne’s Omega 3 supplement.

This combination may support cognitive function and may also offer benefits for polycystic ovary syndrome (PCOS), though evidence is limited.

**Is there a downside to taking omega-3 fish oil?

**

There are some drawbacks to taking omega-3 fish oil, namely side digestive side effects and fishy burps.

Fish oil supplements can also expire and should be stored carefully to keep them fresh.

### The bottom line

There are many types of fish oil supplements, each sourced from a different species and varying in omega-3 fatty acid content.

When shopping for an omega-3 supplement, it’s best to choose a product that’s been third-party tested to make sure the contents match the label and supplement facts panel.

You’ll also want to consider which form of supplement you prefer, such as a liquid, capsule, or gummy, and your preferred dose.

However, keep in mind that more is not always better.

In fact, excessive intake may do more harm than good.

For best results, take the supplement alongside a balanced diet to help maximize its potential benefits.