8 Best Fish Oil Supplements in 2025

Fish oil supplements have a rich omega-3 fatty acid content that may support heart health, brain function, joint mobility, and skin wellness. They may also reduce inflammation, promote healthy cholesterol levels, and enhance your cognitive performance.

Consuming fish oil supplements could also help maintain brain function by supporting cell membrane integrity, promoting neurotransmitter activity, and aiding in cognitive functions like memory and focus. However, with so many fish oil formulas in the market, it’s important to understand which ones actually deliver the benefits they promise.

In this article, we’ve carefully selected the 8 best fish oil supplements, breaking down their pros and cons and potential drawbacks. We have also shared some key points that will help you choose the right formula.

8 Best Fish Oil Supplements

1. Natural Force Pure Omega-3

   

   According to the official website, Natural Force Pure Omega-3 is a mercury-free liquid fish oil that is sustainably sourced from wild-caught Menhaden fish off the coast of Virginia. It claims to undergo molecular distillation to remove impurities and is rigorously tested for toxins, including mercury, PCBs, and dioxins, ensuring purity and freshness.

   Natural Force Pure Omega-3 may support your brain function and combat inflammation due to its high concentration of essential omega-3 fatty acids, including EPA, DHA, and DPA. DHA may help maintain the structure and function of your brain cells, which may enhance cognitive function, memory, and mental clarity. EPA and DPA could contribute to reducing inflammation by regulating inflammatory responses in the body, which can help with joint health and cardiovascular function.

   Natural Force Pure Omega-3 ensures your body can efficiently utilize these essential nutrients by providing these omega-3s in their natural triglyceride form for better absorption. Free from artificial additives and packaged in UV-blocking amber glass, Natural Force Pure Omega-3 is third-party lab-tested, cGMP-certified, and recognized by the Marine Stewardship Council, making it a suitable choice for optimal health.

   Check Price

   Pros

   • Made from wild-caught Menhaden fish, ensuring purity and environmental responsibility.
   • Provides 1,326mg of EPA, DHA, and DPA per serving.
   • Enhances absorption so your body can use omega-3s more effectively.
   • Tested for toxins, oxidation, and purity to ensure safety and quality.
   • Bottled in UV-blocking amber glass to prevent spoilage and maintain potency.
   • It is cGMP-certified, Marine Stewardship Council (MSC) approved, and Paleo & Keto-friendly.

   Cons

   • Despite purification, there may still be a slight fishy flavor.
   • Needs careful handling to avoid breakage.
   • You might find it costly compared to some other fish oil.

2. Designs For Health OmegAvail Synergy

   

   Designs for Health OmegAvail Synergy is a full-spectrum omega fatty acid formula that claims to support your brain health, hormone balance, and a healthy inflammatory response.

   It is said to combine omega-3, omega-6, omega-7, and omega-9 fatty acids, including 270 mg of EPA and 180 mg of DHA, in the highly bioavailable TruTG form.

   According to the makers, Designs for Health OmegAvail Synergy may support your cognitive function, memory, and mental clarity by nourishing brain cell membranes. It could also contribute to hormone balance by aiding in the production and regulation of key hormones, such as serotonin and dopamine, that influence mood, metabolism, and reproductive health.

   OmegAvail Synergy may further support a healthy inflammatory response by providing EPA, DHA, and gamma-linolenic acid (GLA) from borage oil, which might help regulate inflammation and promote joint and immune health.

   Omega-3, omega-7, and omega-9 fatty acids in OmegAvail Synergy could also contribute to skin hydration, elasticity, and overall radiance while strengthening hair and nails. The formula also includes palmitoleic acid and oleic acid from certified organic virgin macadamia nut and borage oils for additional skin and cardiovascular support.

   Check Price

   Pros

   • Provides omega-3, omega-6, omega-7, and omega-9 for full-spectrum support.
   • It may help regulate neurotransmitters and key hormones for mood, metabolism, and reproductive health.
   • EPA, DHA, and GLA in the formula may reduce inflammation and support joint and immune health.
   • It could contribute to hydration, elasticity, and overall vitality.
   • Contains EPA and DHA in the TruTG™ form for superior absorption.
   • Free from gluten, dairy, soy, and GMOs.

   Cons

   • It may not be suitable if you prefer liquid or powdered supplements.
   • Contains Borage Oil, which may cause allergic reactions.

3. Nature Made Burp-Less Fish Oil

   

   Nature Made Burp-Less Fish Oil claims to provide 1200 mg (360 mg Omega-3) per softgels. These softgels are coated to help reduce fishy burps while delivering essential Omega-3s to support heart and eye health.

   As per the official website, Nature Made Burp-Less Fish Oil is purified to clear mercury and contaminants. It is also gluten-free, with no added colors or artificial flavors.

   Nature Made Burp-Less Fish Oil may help maintain healthy cholesterol and triglyceride ranges, support normal blood pressure, and promote overall cardiovascular function. It could also help reduce inflammation, which is linked to heart disease.

   Omega-3 content in Nature Made Burp-Less Fish Oil could help maintain visual function and may reduce the possibility of age-related eye conditions like macular degeneration and dry eyes.

   Check Price

   Pros

   • It claims to support heart health with 720 mg of Omega-3s per serving.
   • Helps maintain eye health with DHA, a key retinal component.
   • Coated softgels to reduce fishy burps for better tolerability.
   • Purified to remove mercury and other contaminants.
   • Gluten-free with no artificial flavors or added colors.

   Cons

   • You might find the softgels difficult to swallow.
   • You could experience minor digestive discomfort.

4. Naturalis Ultimate rTG Omega 3 Fish Oil

   

   As per the makers, Naturalis Ultimate rTG Omega 3 Fish Oil features the highly absorbable re-formed triglyceride (rTG) form, which raises omega-3 levels in cells 3.5 times more effectively. It claims to provide 1800mg of full-spectrum omega-3s EPA, DHA, and DPA from sustainably sourced wild New Zealand tuna.

   Naturalis softgels are pescatarian-friendly, non-GMO, gluten-free, and free from hexane. Manufactured in a cGMP-compliant facility in California, USA, these softgels undergo rigorous third-party testing for purity and heavy metals.

   Naturalis Ultimate rTG Omega 3 Fish Oil is enriched with astaxanthin that may protect your cells from oxidative stress and inflammation. It could also support cardiovascular health by promoting healthy circulation and reducing oxidative strain on blood vessels by reducing free radical damage.

   Check Price

   Pros

   • rTG omega-3 raises cellular omega-3 levels 3.5x more effectively than standard triglycerides.
   • Contains EPA, DHA, and DPA for comprehensive cardiovascular and cognitive benefits.
   • Provides antioxidant support for heart health and healthy aging.
   • Single-sourced from wild New Zealand tuna, MSC-certified for sustainability.
   • Third-party tested for heavy metals and manufactured in a cGMP-compliant facility.
   • Non-GMO, gluten-free, and free from hexane.

   Cons

   • You may experience a slight fishy aftertaste.
   • Results could vary, and you may not experience any significant benefit.
   • It requires consistent use, which can be hectic.

5. Spoonful Mini Omega 3 Fish Oil

   

   Spoonful Mini Omega 3 Fish Oil claims to deliver 1,290 mg of fish oil, including 1,070 mg of Omega-3s, with 709 mg of EPA and 270 mg of DHA per serving (3 softgels).

   Spoonful Mini Omega 3 Fish Oil contains EPA and DHA, which may help maintain normal blood pressure and reduce the chances of abnormal heart rhythms, promoting overall cardiovascular well-being.

   According to the official website, Spoonful Mini Omega 3 Fish Oil’s anti-inflammatory properties may help reduce joint stiffness and discomfort, supporting mobility and flexibility.

   This fish oil is iFOS (International Fish Oil Standards) certified, ensuring the highest standards of purity, potency, and freshness. Sourced from wild-caught small fish, Spoonful Mini Omega 3 Fish provides a rich Omega-3 profile without heavy metal contamination.

   Manufactured in USA in a GMP-compliant facility, Spoonful Mini Omega 3 Fish Oil may also help maintain healthy skin.

   Check Price

   Pros

   • Provides 1,070 mg of Omega-3s per serving, with EPA and DHA.
   • Mini-sized softgels make it easier to take compared to standard fish oil pills.
   • iFOS Certified, which ensures high purity through rigorous testing.
   • It may promote heart, brain, joint, and skin health while improving mood.
   • Manufactured in a GMP-compliant facility to ensure quality and safety.

   Cons

   • Although minimized, you may experience mild fishy burps.
   • Exposure to high temperatures can cause capsules to stick together.
   • Requires consistent intake of three capsules per day to achieve full benefits.

6. Sports Research Triple Strength Omega 3 Fish Oil

   

   According to the official website, Sports Research Triple Strength Omega-3 Fish Oil is sourced from Wild Alaska Pollock and undergoes a 10-step refinement process to ensure ultra-concentration without the fishy aftertaste.

   Sports Research Triple Strength Omega-3 Fish Oil may help regulate your immune function by reducing inflammation, enhancing immune cell function, and supporting overall immune responses.

   Sports Research Triple Strength Omega-3 Fish Oil claims to deliver three times the strength of EPA and DHA in the triglyceride form. It is IGEN non-GMO-tested, IFOS 5-Star Certified, gluten-free, and third-party tested.

   Check Price

   Pros

   • Delivers three times the strength of EPA and DHA in the triglyceride form for better absorption.
   • Provides the recommended omega-3 intake in a single softgel, reducing pill burden.
   • Undergoes a 10-step refinement process to eliminate unpleasant taste and odor.
   • It may help maintain cognitive function and support a healthy immune system.
   • IGEN Non-GMO Tested, IFOS 5-Star Certified, gluten-free, third-party tested, and cGMP compliant.

   Cons

   • Higher quality and certification may make the formula costlier.
   • Since it’s derived from fish, it’s not safe if you have seafood allergies.

7. Nordic Naturals Ultimate Omega

   

   Nordic Naturals Ultimate Omega claims to support your heart, brain, and immune health with 1280 mg of total omega-3s per serving. Sourced exclusively from 100% wild-caught sardines and anchovies, Nordic Naturals Ultimate Omega may help modulate inflammation and enhance immune cell function. This could help improve your body’s ability to fight off infections and maintain overall wellness.

   According to the official website, Nordic Naturals Ultimate Omega features a fresh lemon taste, ensuring a clean, pleasant experience without the fishy aftertaste.

   Check Price

   Pros

   • Delivers 1280 mg of total omega-3s per serving.
   • Rich in EPA and DHA, essential for cardiovascular, cognitive, and immune function.
   • Made from 100% wild-caught sardines and anchovies.
   • Provides a fresh lemon taste, which eliminates the fishy aftertaste for a pleasant experience.
   • Third-party tested & Non-GMO, and provides Certificates of Analysis.

   Cons

   • It is only available on its official website for purchase.
   • Its quality may degrade if not stored properly in a cool, dark place.
   • You may experience bloating or mild stomach upset when first taking the formula.

8. MAV NUTRITION Triple Strength Omega 3

   

   According to the official website, MAV NUTRITION Triple Strength Omega 3 provides 3600 mg of fish oil per serving, including 1300 mg of EPA and 860 mg of DHA. It could help maintain joint flexibility and comfort by supporting a balanced inflammatory response.

   MAV NUTRITION Triple Strength Omega 3 may also support mood regulation and reduce cognitive decline associated with aging. Sourced from clean, wild-caught fish from Friend of the Sea certified sustainable fisheries, this non-GMO formula undergoes molecular distillation to remove mercury, heavy metals, PCBs, and other toxins, ensuring purity and potency.

   Check Price

   Pros

   • It has 3600 mg of fish oil per 3 softgel serving.
   • It also has 1300 mg EPA and 860 mg DHA.
   • It is distilled and removes mercury, heavy metals, and contaminants.
   • Made from wild-caught fish from Friend of the Sea certified fisheries.
   • It promotes joint health, which may reduce discomfort while walking or physical activities.
   • It is free from genetically modified ingredients for a cleaner supplement.

   Cons

   • Results, such as improved joint comfort, may take several weeks to become noticeable.
   • The softgel coating may not be suitable for you if you have certain dietary restrictions.

Factors To Consider Before Buying Fish Oil

1. Purity And Quality

   When buying fish oil, make sure you’re getting a high-quality product that is free from harmful contaminants. Fish can accumulate heavy metals like mercury, lead, and arsenic, as well as toxins such as polychlorinated biphenyls (PCBs). To ensure your fish oil is safe, look for brands that undergo third-party testing by independent laboratories. Certifications from organizations like IFOS (International Fish Oil Standards), NSF International, or USP (United States Pharmacopeia) indicate that the product meets strict purity and potency standards.

   Third-party testing also verifies that the fish oil contains the ratio of EPA and DHA stated on the label without oxidation or harmful additives. Some low-quality fish oils may degrade over time, leading to a rancid taste and reduced effectiveness. You should ensure you’re getting fresh, high-quality omega-3s by choosing a certified product.

2. EPA And DHA Content

   The benefits of fish oil come from EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), the two main omega-3 fatty acids that may support heart, brain, and joint health. Not all fish oils provide the same concentration of these essential nutrients, so checking the label is crucial.

   Some products may contain a large amount of fish oil but a low percentage of EPA and DHA, making them less effective. High-quality fish oil supplements typically provide at least 500 mg of combined EPA and DHA per serving, but depending on your health goals, you may need a higher dose. For example, if you’re taking fish oil for heart health, the American Heart Association recommends around 1,000 mg of EPA and DHA daily, while higher doses may be needed for joint support or inflammation management. Make sure to check the supplement facts to confirm the actual omega-3 content rather than just the total fish oil amount.

3. Source Of The Fish Oil

   The source of your fish oil plays a big role in its overall quality and nutritional value. Fish oil is obtained from fatty fish like anchovies, sardines, mackerel, and salmon, but whether these fish are wild-caught or farmed can make a difference in purity, omega-3 content, and sustainability.

   Wild-caught fish generally have a more natural diet, which could lead to a higher concentration of EPA and DHA. Since these fish live in their natural environment, they are less likely to be exposed to antibiotics, pesticides, or artificial feeds, which are sometimes used in fish farming.

   On the other hand, farmed fish are raised in controlled environments where their diet may include processed feeds that could lower the omega-3 content. Some farmed fish may also have a higher risk of contamination from pollutants or antibiotics used in aquaculture. However, not all farmed fish are low quality some responsibly farmed sources follow strict guidelines to maintain purity and sustainability.

   When choosing the best fish oil supplement, look for products that specify wild-caught sources or come from sustainably managed fisheries, such as those certified by the Marine Stewardship Council (MSC). This helps ensure that you’re getting a cleaner, more potent fish oil while also supporting environmentally responsible fishing practices.

4. Allergen Considerations

   Fish oil is typically made from fatty fish like anchovies, sardines, and mackerel, which can trigger allergic reactions in some people. While highly refined fish oil may have fewer proteins that cause allergies, there is still a risk of cross-contamination.

   Some fish oil supplements also contain added ingredients like gelatin (from bovine or fish sources) or flavorings, which could cause allergic reactions. If you are allergic to shellfish, you should also be cautious, as some omega-3 supplements come from krill oil or other marine sources that might not be safe for you. To avoid allergic reactions, always check the label for allergen warnings and choose a product that is clearly labeled as free from common allergens. If you’re highly sensitive, consider algae-based omega-3 supplements, which provide DHA and EPA without using fish or shellfish.

Side Effects Of Fish Oil Supplements

1. Fishy Aftertaste And Burps

   When you take fish oil, you might notice a fishy taste in your mouth or experience burps that smell like fish. This may happen because the oil breaks down in your stomach, releasing its natural fishy compounds. Some fish oil supplements oxidize easily, especially if they are low-quality or not properly stored, making the taste and smell even stronger. You may also feel mild nausea due to the lingering taste. This side effect is more common when taking fish oil on an empty stomach because digestion happens faster, allowing the oil to rise back up.

2. Digestive Issues

   Taking fish oil supplements can sometimes upset your stomach, especially if you take a high dose or a low-quality supplement. Since fish oil is a type of fat, your body needs time to digest it properly. In some cases, it can act as a mild laxative, leading to bloating, nausea, diarrhea, or stomach cramps. This discomfort happens because fish oil can slow down digestion, making your stomach feel heavy or full. The extra fat content may also stimulate bowel movements, leading to loose stools or diarrhea in some people. If your stomach lining is sensitive, fish oil may cause acid reflux, heartburn, or even mild stomach pain. You may also experience gassiness or frequent belching, which can add to the discomfort.

3. Blood Thinning

   Fish oil has natural blood-thinning properties because omega-3 fatty acids help reduce platelet aggregation, meaning they prevent platelets from clumping together to create blood clots. While this can support heart health and reduce the risk of stroke and heart attacks, it may also lead to increased bleeding risk in some people.

   In rare cases, excessive thinning of the blood from fish oil products could increase the risk of internal bleeding, leading to symptoms like dizziness, fatigue, or blood in urine or stool. This is particularly important if you have a bleeding disorder, upcoming surgery, or take blood-thinning medications like warfarin, aspirin, or heparin.

4. Low Blood Pressure

   The omega-3 fatty acids in fish oil might help relax blood vessels and improve circulation, which could lead to a drop in blood pressure. This can be beneficial if you have high blood pressure (hypertension), as it helps reduce strain on your heart. However, if your blood pressure is already low or well-controlled, taking fish oil may lower it too much, causing symptoms like dizziness, lightheadedness, blurry vision, or even fainting.

   If you’re already taking blood pressure medications, fish oil may enhance their effects, leading to a greater risk of hypotension (low blood pressure). This can be especially concerning if you are prone to fainting spells or have conditions like orthostatic hypotension.

5. Vitamin A Toxicity

   Some fish oil products, especially those that are made from the fish liver (like cod liver oil), contain high amounts of vitamin A. While vitamin A may support eye health, immune function, and skin maintenance, taking too much can lead to toxicity (hypervitaminosis A). Since vitamin A is fat-soluble, your body stores excess amounts instead of flushing them out, which can cause harmful effects over time. Symptoms of vitamin A toxicity caused by fish oil can appear suddenly if you take a very high dose or develop gradually with long-term excessive intake. You might experience severe headaches, dizziness, nausea, and vomiting due to increased pressure in the skull. Blurry vision and sensitivity to light might also occur, making it difficult to focus.

Frequently Asked Questions

1. Can Fish Oil Supplements Go Bad? How Do I Store It Properly?
   Fish oil supplements can go rancid over time, especially if exposed to heat, light, or air. To keep it fresh, store your supplement in a cool, dark place, such as the refrigerator.
2. Can Fish Oil Supplements Help With Skin Health?
   Omega-3s in fish oil could help keep your skin hydrated, reduce inflammation, and support collagen production.
3. Can Fish Oil Products Improve My Sleep?
   Omega-3s, especially DHA in fish oil, may support better sleep by regulating melatonin production and reducing inflammation that can disrupt rest.
4. Do Fish Oil Supplements Help With Muscle Recovery After Workouts?
   Fish oil’s anti-inflammatory properties may help reduce muscle soreness and stiffness after intense workouts. It could also support muscle protein synthesis, aiding in muscle repair and recovery.

Conclusion

Fish oil supplements could be a suitable and easy approach to getting omega-3 fatty acids, which may support your heart, brain, joints, and immune health. If you are considering including fish oil products in your daily routine, we have shared a list of 8 Best fish oil supplements in this article.

However, before taking fish oil, there are some precautions you must follow to avoid any potential side effects. If you take blood thinners, have a bleeding disorder, or have low blood pressure, talk to your doctor first since fish oil can thin your blood and increase bleeding risk.

You may also consider some natural alternatives to fish oil if you want to attain enough omega-3. Combining flaxseeds, chia seeds, walnuts, hemp seeds, and algal oil (from marine algae) in your diet might be helpful.

These plant-based sources provide ALA, a type of omega-3 your body can convert into EPA and DHA. While your body doesn’t convert ALA as efficiently as fish oil, eating these foods regularly can still give you important health benefits.

Whether you choose fish oil or plant-based options, making sure you get enough omega-3s in your diet might help support your long-term health.