Best Omega-3 Supplements For Health & Support 2021


Boost your overall health and athletic performance with these great omega-3 supplements.

We always hear about omega-3 supplements and how important they are for our overall health. Although they are fatty acids, this is one kind of fat to keep around, and for good reason. While they are often found in many of the foods we already eat, taking omega-3’s as a dietary supplement can boost our overall health to keep us in the gym and off the couch. No matter the time of year, your body needs the absolute best to continue to thrive and see those gains we all know and love.

Fish oil is one popular supplement many people take for a variety of reasons, including fighting anxiety and depression, improving eye and heart health, promoting bone and joint health, reducing inflammation, as well as keeping you in overall top shape to see your gains come to fruition and keep your athletic performance in top shape. Krill oil is another omega-3 supplement to consider that could potentially dethrone the popular fish oil by providing the same benefits. It has been observed that krill oil can enhance bioavailability allowing for better digestion than fish oil (1).

What Are Omega-3 Fatty Acids?

There are three kinds of omega-3 fatty acids to know about when diving into the world of these supplements. The two most important ones are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), both of which are found in certain kinds of fish. The third is alpha-linolenic acid (ALA), which is found in different plant sources like nuts and seeds. We won’t worry as much about ALA, but know there is a plant-based option for those looking. With both krill oil and fish oil high in EPA and DHA, with booming benefits for your overall health, the choice of which one is better becomes a little more challenging as the differences tend to be more subtle than not (2).


Here is our list of the Best Omega-3 Supplements for 2021 so you can be well on your way to boosting your own health and wellness while working to maximize your gains. A mix of both krill and fish oil, you can check out a few of both and see which one would work better for your lifestyle.

Best Omega-3 Supplement Overall: Performance Lab Omega-3

Performance Lab Omega 3

Performance Lab Omega-3 is an amazing supplement to optimize cell performance to promote whole-body health and vitality. This ultraclean omega-3 can enhance brain and eye performance, promote cardiovascular health, support muscles, and soothe joints through its ultramodern design made from 100% plant-based fatty acids. Sourced from natural algae, this safe and effective omega-3 has no fishy taste or smell and offers a nice alternative to your traditional fish or krill oil products.

Pros: Clean and safe alternative to fish oil by providing plant based fatty acids. Great benefits and an ultramodern design. From a reputable and honest company in Performance Lab.

Cons: A premium priced option only available directly from their website.

Price: $39.00/ 30 servings

Click here for the best price

Check out our individual review for Performance Lab Omega-3 here!

Best Krill Oil: Transparent Labs RawSeries Krill Oil

Transparent Labs CoreSeries Krill Oil

Transparent Labs RawSeries Krill Oil is great for anyone looking for a superior source of nutrition with no harmful fillers or additives from krill oils with unwanted side effects. Transparent Labs prides themselves on transparency and honest labels with every batch being third party tested. With a good amount of omega 3 fatty acids consisting of 120mg of EPA, 55mg of DHA, and 80mcg of astaxanthin, these easy to digest capsules are great for brain, heart, and joint health, with tons of astaxanthin as well making this a solid krill oil.

Pros: This krill oil supplement has great ingredients and an honest label. The value is great, for while you may find cheaper options, the third party tested and well-researched formula guarantee is worth the extra money for this safe oil.

Cons: Compared to others, it could have a higher dose of EPA and DHA, as well as astaxanthin in these krill oil capsules for consumers.

Price: $29.00/ 30 servings

Click here for the best price

Check out our individual review for Transparent Labs RawSeries Krill Oil here!


Best Ingredients: Legion Triton Fish Oil

Legion Triton

Legion Triton Fish Oil is a high potency, molecularly distilled fish oil designed to optimize your health, performance, and well-being, including functions like enhancing joint and heart health, boosting your immune system, increasing cognitive performance, and elevating your metabolism. Sustainably sourced and eco-friendly, these high-potency, burpless pills can prevent oxidation and rancidity and offer you a high quality fish oil product with top health benefits. With 4,000mg of clean and easily absorbed omega-3 fatty acids, you get a healthy dose distilled to reduce toxins for optimal effectiveness and the highest amount of safety to you.

Pros: High potency and molecularly distilled for optimal safety and effectiveness. Great benefits for physical and cognitive health. Healthy amount of omega-3’s included.

Cons: A bit of a strong flavor and slightly more expensive than others on the market.

Price: $34.97/ 30 servings

Click here for the best price

Best For Pain Inflammation: Onnit Krill Oil

ONNIT Krill Oil

ONNIT brings this krill oil into the mix as a great supplement to support healthy joints and alleviate pain. Packed with 130mg of EPA, 60mg of DHA, and 200mcg of astaxanthin, this krill oil also supports brain and heart health, as well as blood pressure. As a great boost for energy and cognitive health, ONNIT supports your overall performance both inside and out of the gym and is one of the top tier krill oils.

Pros: This krill oil supplement is great for joint pain and that is from the large amount of astaxanthin it contains. ONNIT brings a great krill product to boost energy and cognitive health as well.

Cons: The amount of omega 3 fatty acids in DHA and EPA could be a little higher given the amount of astaxanthin in these krill oil capsules for consumers.

Price: $29.95/ 30 servings

Click here for the best price

Best For Cholesterol Levels: Viva Naturals Triple Strength Omega-3 Fish Oil

Viva Naturals Fish Oil

Viva Naturals Omega-3 Fish Oil is a fish oil that your body uses better and faster than most others on the market. By taking just two softgels, you’re working to get more nutrients into your body to improve brain function, eyesight, heart health, and maintain healthy levels of cholesterol. They take small, wild-caught fish like anchovies, sardines, and mackerel and purify the oil for optimal effectiveness and minimal odor and aftertaste. Using EPA and DHA omega-3 fatty acids, they are easier to digest and your body can then use them faster for better support.

Pros: Great ratio of EPA and DHA and able to offer really nice benefits for inflammation and brain function. At a great price from a reputable company in Viva Naturals.

Cons: Some concerns with digestion and the breakdown of the capsules. Third party testing didn’t test for heavy metal in some cases.

Price: $29.99/ 45 servings

Click here for the best price

Check out our individual review for Viva Naturals Omega-3 Fish Oil here!

Best Advanced Formula: Sports Research Antarctic Krill

krill oil

Sports Research brings you this advanced krill oil to really increase the omega-3’s in your body. With sustainably sourced krill and easy-to-swallow capsules, this supplement is great for those looking to really boost the effects of krill oil. With 136mg of EPA and 60mg of DHA, it also has 500mcg of astaxanthin to support immunity and even skin health. With this krill oil, Sports Research offers a great, easy to digest product.

Pros: This is a great krill oil supplement from Sports Research with an advanced formula to give you all those vital omega-3’s. It helps with cholesterol maintenance and joint support and the capsules are easy to digest. Although the price seems high, it is actually relatively the same as others since you take only one capsule per servings as opposed to two.

Cons: Product quality control for this oil tends to lack slightly, which is disappointing for the price, and it does tend to cause some acid reflux in some people.

Price: $29.95/ 60 servings

Click here for the best price

What Are The Benefits Of Omega-3 Supplements?

Omega-3 fatty acids are important and can really work for your benefit when it comes to overall health and wellness. Of course, the more healthy you are, the better able you are at tackling any workout that comes your way.

Benefits include:

  • Promote eye health: Work to improve the structural component of your retinas to prevent degeneration.
  • Fight inflammation: Can reduce substances that are linked to and cause inflammation (4).
  • Enhance heart health: Lower blood pressure and slow plaque development in the arteries (5).
  • Increase bone and joint health: Boost calcium in your bones and can reduce joint pain.

How We Decide The Best Supplements

When it comes to putting this list of the top omega-3 supplements together, our team looks for a number of factors regarding each individual supplement. To start, we look at the brand. You deserve honest and transparent products and these brands featured here take pride in delivering the best to consumers. For ingredients, it is important they are dosed appropriately, but also contain the right ingredients. Too often do mediocre companies put things in their supplements that just don’t need to be there. Of course, price is important. It can be expensive to take care of yourself and we want to bring you the best without breaking the bank.

strong man

What’s In These Omega-3 Supplements?

The main three ingredients that make up a well-rounded omega-3 are:

Eicosapentaenoic acid (EPA): Found in cold water fish like herring, mackerel, halibut, among others. Some of the many benefits of EPA include lowering symptoms of depression, reducing your risk of heart disease, easing symptoms of menopause, and slowing the progression of arthritis (6).

Docosahexaenoic acid (DHA): Found in fish and other cold water multi-cellular organisms. Benefits of DHA include reducing your risk of heart disease, fighting inflammation and supporting muscle recovery, and working to promote better eye health.

Astaxanthin: A natural, red pigmented ketocarotenoid with powerful antioxidant properties. Benefits include reducing exercise fatigue, aiding in heart health, boosting cognitive function, and working as an anti-inflammatory (7).

What Else To Know

When looking to take an omega-3 supplement, somewhere around 3,000-5,000mg is safe, but most people don’t need that high of a dose. Always reading the label is helpful when starting to take these supplements for these honest and transparent companies on our list will disclose important information on the bottle.

FAQ Section

What Is the best omega-3 supplement?

Performance Lab Omega-3. This ultramodern supplement is amazing to optimize cell performance to promote whole-body health and vitality. It can enhance brain and eye performance, promote cardiovascular health, support muscles, and soothe joints through its ultramodern design and is made from 100% plant-based fatty acids.

Is krill oil or fish oil a better form of omega-3 supplements?

Both have great effects on your body and it is debated as to the pros and cons of both. While the benefits are largely the same, one of the main draws to krill oil is its bioavailability since it attaches to phospholipids allowing for better absorption. It is a personal preference so always do research into both types of supplements and see which is more attractive to you.

Should I take a multivitamin with an omega-3 supplement?

There are great benefits to both a multivitamin and an omega-3 supplement to round out a great supplementation routine to enhance your overall health. Using a pure DHA/EPA supplement is more ideal as to not overload on certain essential nutrients. Always look into both supplements you plan on taking to see what ingredients may overlap and how each will potentially affect your body (3).

Wrap Up

Omega-3 supplements are incredibly important to consider when thinking of your overall health and wellness. Their powerful properties to aid in immunity, joint health, cognitive and cardiovascular functions, and provide powerful nutrients make these supplements sought after. While fish oil is a popular choice, krill oil is definitely something to consider for the omega 3s and its effects. While science continues to do more and more research into just how great krill oil is, it is arguably more effective than fish oil while providing the same benefits and more. Check out this list above and see what a great omega-3 supplement can do for you today.

Generation Iron may receive commissions on purchases made through our links. See our disclosure page for more information.

Let us know what you think in the comments below. Also, be sure to follow Generation Iron on Facebook, Twitter, and Instagram. 


  1. Ulven, Stine M.; Holven, Kirsten B. (2015). “Comparison of bioavailability of krill oil versus fish oil and health effect”. (source)
  2. National Center for Complementary and Integrative Health. “Omega-3 Supplements: In Depth”. (source)
  3. Harvard Health Publishing Harvard Women’s Health Watch (2019). “Should you be taking an omega-3 supplement?”. (source)
  4. Calder, Philip C. (2017). “Omega-3 fatty acids and inflammatory processes: from molecules to man”. (source)
  5. Harvard Men’s Health Watch (2020). “Omega-3 supplements may improve heart health”. (source)
  6. Tsuchiya, Yosuke; Ueda, Hisashi; Yanagimoto, Kenichi; Kato, Ayaka; Ochi, Eisuke (2021). “4-week eicosapentaenoic acid-rich fish oil supplementation partially protects muscular damage following eccentric contractions”. (source)
  7. Ekpe, Lawson; Inaku, Kenneth Ogar; Ekpe, Victor (2018). “Antioxidant effects of astaxanthin in various diseases- a review”. (source)


Please enter your comment!
Please enter your name here