Fish oil supplements are one of the most effective ways to take care of your heart health and help prevent chronic disease.

You cain obtain fish oil naturally by eating lots of fish – particularly salmon, tuna, mackerel, herring, and cod liver. These fish are rich in omega-3 fatty acids.

The easiest way to obtain all the health benefits of fish oil is to take a fish oil supplement – they can help lower triglyceride and cholesterol levels, prevent heart disease and stroke, and even lower blood pressure (1).

Below is a list of the best fish oil supplements on the market, according to price, product quality, and customer reviews. Part two of this guide breaks down what exactly goes into fish oil supplements and how they work.

Here’s our #1 recommended fish oil supplement in 2020:

1- Dr. Tobias Triple Strength Omega 3 Fish Oil

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A premium fish oil supplement at a relatively low cost makes Dr. Tobias Triple Strength Omega-3 Fish Oil our #1 recommended fish oil supplement on the market.

As one of the highest quality fish oil supplements on the market, Dr. Tobias Fish Oil contains 2,000 mg of premium fish oil – including 600 mg of DHA and 800 mg of EPA omega-3 fatty acids per serving.

The capsules have been specifically designed to eliminate aftertastes and burps so you never have to taste anything.

This supplement is made with fish oil that has been purified with molecular distillation – one of the few current methods that can purify from heavy metals, PCB’s and other toxins to below detectable limits for human consumption.

Here are the nutrition facts:

Amount Per Serving (Amount % Daily Value); Calories  20 (Calories from Fat  20), Total Fat  2g 2%, Fish Oil  (typically providing 800mg of EPA and 600mg of DHA)  2000 mg *, EPA (Eicosapentaenoic Acid)  800 mg *, DHA (Docosahexaenoic Acid)  600 mg *, * Daily value not established. Other ingredients: Gelatin (bovine), vegetable glycerin, purified water enteric coating, and natural vitamin E. Allergen Warning: Contains Fish (Herring, Anchovy, Sardine, Salmon and Mackerel) and Soy. Non-GMO Formula.

2 softgels per serving, 180 softgels in the bottle.

2- Purity Labs Omega 3 Fish Oil

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With whopping 3,000 mg of fish oil per serving, Purity Labs Omega 3 Fish Oil is one of the most potent fish oil supplements on the market.

This particular supplement contains 915 mg of EPA and 630 mg of DHA Omega-3 fatty acids per serving.

They also offer a 100% money-back guarantee, even after using the supplement for a whole year or using up the whole bottle. Pretty cool.

Here’s what the company has to say about their product quality:

PURE, SAFE, AND FRESH: Our hexane-free, state-of-the-art molecular distillation prevents harmful oxidation and removes PCBs, dioxins, mercury and other potentially harmful contaminants NATURALLY so you can feel safe about what you are putting into your body. Purity Labs uses Rosemary Extract and natural tocopherols to preserve freshness naturally, without potentially harmful contaminants. 

CERTIFIED TO BE SUSTAINABLY SOURCED & TRACEABLE by Friend of the Sea. We source from fish from natural deep ocean waters found in nature – NOT from farm-raised fish, and manufacture our supplements in GMP Certified facilities in the USA.”

3 gelcaps per serving, 60 servings per container.

3- BioScience Nutrition Omega 3 Fish Oil

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This fish oil supplement contains 1200 mg of EPA and 900 mg of DHA omega-3 fatty acids. This is a high dosage per serving compared to other leading brands.

The supplement has been tested for heavy metals and purified using a distillation process for enhanced product safety.

BioScience uses a special extraction process from wild ocean-caught fish for higher EPA and DHA content. Comes in a burpless natural lemon flavor.

They have lots of positive reviews online, here’s one from Leslie S.:

“We have bought fish oil before but not one as high quality as this one from.Bioscience. My daughter completed a Genomind genetic testing which states she needs to take a high quality, high dose of omega 3. This product has been excellent, no after taste, and we have felt better just after a few days starting back on our fish oil. I will buy from them again.”

3 softgels per serving, 120 softgels in the container.

4- Optimum Nutrition Fish Oil

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With 200 capsules of fish oil per bottle, Optimum Nutrition Fish Oil is one of the more affordable fish oil supplements on the market.

Made by the supplement powerhouse company, Optimum Nutrition, who has a good loyal following and a reputation in the health space (with supplements like pre-workout, creatine, and healthy energy drinks).

It is important to note that each capsule contains just 1,000 mg of fish oil with a 300 mg blend of EPA and DHA omega-3 fatty acids which is a smaller dosage per serving compared to other similar products in this space.

Recently, Optimum Nutrition updated their formula so the gelatin in the capsule is completely sourced from beef, instead of sourcing it from pork.

1 capsule per serving, 200 capsules in the bottle.

5- Nutratech Omega Plus

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Omega Plus, made by the team at Nutratech, is a fish oil supplement that contains over 1600 mg of fatty acids per serving.

Each 2 capsule serving provides 1640mg of fatty acids – 860mg EPA, 650mg DHA, and 130mg of other fatty acids.

Lemon flavored soft gels make swallowing easy and helps to eliminate any fishy aftertaste.

State-of-the-art purification processes remove mercury and other toxins, and ensures unusually high levels of fish oil purity and concentration, guaranteed to pass the stringent standards of the Global Organization for EPA and DHA Omega-3 Voluntary Monograph.

2 capsules per serving, 120 capsules in the bottle.

What are fish oil supplements?

Fish oil supplements have concentrated levels of healthy omega-3 fatty acids, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).

These supplements can have numerous health benefits for our bodies, especially if you don’t eat a lot of fish in your diet.

Fish oil supplements make it convenient and affordable to gain all the benefits of fish oil and omega-3 fatty acids without always eating a ton of seafood.

How do fish oil supplements work?

The most important aspect of fish oil supplements are the omega-3 fatty acids.

Our bodies don’t produce these type of oils naturally, they must be obtained either by the food you eat or by taking a fish oil supplement.

These omega-3 oils, EPA and DHA, improve your blood health helping it flow better and preventing clots from occurring. This can go a long way for your body and result in even more health benefits like healthier hair and skin.

How to take a fish oil supplement

Fish oil supplements can generally be taken at any time of day, but most people like taking them with a meal.

Check your supplement label for specific dosage instructions, most will be less than 3 grams per day. Any dosage higher than this should be specifically instructed by your doctor.

Take a capsule with a full glass of water and try to establish a routine so you won’t accidentally forget a dosage as easily.

What are the benefits of fish oil?

There are numerous health benefits of fish oil, but the most common benefit is for overall heart and blood health (similar to shiitake and chaga mushrooms ).

The FDA has approved fish oil for lowering triglyceride levels, but the benefits are far more extensive. It’s one of the best natural sources of all-around health and nutrition.

Here’s a list of some of the benefits of fish oil:

  • prevents heart disease and strokes
  • prevents blood clots
  • prevents kidney disease and kidney failure
  • helps with depression and bi-polar disorder (similar to chamomile)
  • helps with ADHD and alzheimer’s disease
  • helps with stomach ulcers and inflammatory bowel disease
  • helps prevent painful periods for women
  • helps with weight loss and muscle soreness

What are the possible side effects of fish oil?

Fish oil supplements generally have zero side effects when taken in minor doses, usually less than 3 grams per day.

Higher doses of fish oil may increase bleeding as your blood doesn’t clot as easily with omega-3 fatty acids. Also, higher doses of fish oil can lead to a weakened immune system and reduce your ability to fight of infections.

It is recommended that you only take higher doses of fish oil while under medical supervision or specific instruction from your doctor.

Some minor side effects of fish oil may include:

  • burping and bad breath
  • heartburn
  • nausea
  • loose stools
  • rash
  • nosebleeds

Always consult with your doctor before trying a new supplement if you take any prescription medications – especially medications for birth control and high blood pressure – and never exceed the recommended dosage unless specifically ordered by a doctor.


For improved heart and blood health, taking a fish oil supplement is one of the best natural ways to achieve this.

Check the rankings above to see which top rated fish oil supplements best suits your needs.

The HealthRanks Team

The HealthRanks Team is composed of like-minded health experts who share a passion for sharing their health knowledge for the benefit of others. Check out our about page for more information.


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