Omega-3 fatty acids are vital for heart, joint, and brain health, but your body can't produce them on its own, so you need to get them from your diet or supplements.
Taking Krill oil supplements could provide you with omega-3 fatty acids, offering EPA and DHA in a phospholipid form that may support better absorption compared to standard fish oil.
These supplements also contain astaxanthin, a naturally occurring antioxidant that may help protect your cells from oxidative stress.
In this blog post, we have reviewed the 10 best Krill Oil Supplements in 2025, along with their pros and cons. We have also shared the potential drawbacks of using these supplements to help you make an informed decision.
As per the makers, Now Foods Krill Oil features Neptune Krill Oil (NKO®), along with astaxanthin, which may support immune health and cellular protection. It could also help maintain a balanced inflammatory response. The omega-3 profile found in Now Foods Krill Oil may assist with lipid metabolism and cognitive function.
The makers state that Now Foods Krill Oil is certified by organizations like Friend of the Sea and Intertek GMP. It is also produced under strict quality control and tested to ensure it is free from contaminants such as mercury, PCBs, dioxins, and other heavy metals.
Pure Encapsulations claims that their Krill-plex could promote healthy prostaglandin production and support inflammation regulation and hormone signaling. It may also support heart health by promoting healthy lipid profiles and glucose metabolism. Pure Encapsulations krill-plex's anti-inflammatory properties may also support joint flexibility and comfort. As per the official website, Pure Encapsulations Krill-plex is made without allergens, artificial additives, or unnecessary fillers.
Jocko Super Krill Oil could support your brain, heart, and joint health with its potent combination of omega-3s, phospholipids, and antioxidants. Each serving of two-soft gel provides 1,000 mg of krill oil, including 120 mg of EPA and 80 mg of DHA, which may promote cognitive performance and help manage your body's inflammatory response. Jocko Super Krill Oil also offers 200 mg of total phospholipids, which may help improve absorption so your body can use the omega-3s you're taking. It also provides 200 mcg of astaxanthin, which could help protect your cells and support immune resilience.
Viva Naturals claims that their Antarctic Krill Oil provides a concentrated omega-3 fatty acid source, including 165 mg of EPA and 90 mg of DHA per two-capsule serving. It also combines 1.6mg of astaxanthin, which could offer cellular protection benefits.
The Antarctic krill oil by Viva Naturals is encapsulated in advanced Caplique capsules, which may help reduce unpleasant aftertastes and minimize odor. As per the official website, each batch of Viva Naturals Antarctic Krill Oil is independently tested and certified by IKOS (International Krill Oil Standards).
As per the official website, Micro Ingredients Antarctic Krill Oil provides 1000 mg of krill oil per serving of two capsules. It also combines omega-3 fatty acids, phospholipids, and astaxanthin, which may support joint mobility and brain performance. Micro Ingredients Antarctic Krill Oil is enriched with vitamins B1, B2, B12, and C, along with zinc, magnesium, calcium, and potassium. These nutrients may contribute to immune resilience, energy production, and metabolic balance.
1MD Nutrition's KrillMD could help support heart, cognitive, and joint health by addressing oxidative stress and inflammation. KrillMD by 1MD Nutrition claims to be more bioavailable and gentler on digestion without the fishy aftertaste.
As per the official website, 1MD Nutrition's KrillMD may help improve joint flexibility, enhanced cardiovascular function, and better cognitive clarity over time. It could also offer support for healthy cholesterol.
The makers state that KrillMD is produced in the USA in a GMP-certified facility using eco-conscious harvesting methods to help preserve marine ecosystems.
NatureMyst claims that its Superior Red Krill Oil is sourced from krill harvested in deep ocean waters using cold processing techniques that help preserve its natural composition. It is formulated without common allergens such as soy, gluten, dairy, and peanuts.
As per the official website, NatureMysts's krill oil undergoes supercritical CO₂ extraction followed by molecular distillation to reduce contaminants like PCBs and dioxins. Its omega-3 fatty acids are delivered in phospholipid form, which your body can absorb efficiently due to their compatibility with human cell membranes.
The makers state that each Superior Red Krill Oil is tested in independent laboratories to confirm purity, potency, and label accuracy. They also mention that the softgels are enteric-coated in a nitrogen-controlled environment to help maintain stability and reduce oxidation.
As per its official site, NatureBell Antarctic Krill Oil provides an extra-strength formula featuring 2,000 mg of pure krill oil per two soft gel servings, which could help enhance your joint flexibility and immune function.
Phospholipids in NatureBell Antarctic Krill Oil can help your body absorb omega-3s more efficiently compared to traditional fish oil. It could also help minimize the common fishy aftertaste, making it a more pleasant daily option. Each NatureBell Antarctic Krill Oil bottle contains 240 softgels, which can last up to 120 days of use. It is also made without soy, dairy, gluten, preservatives, or irradiation.
According to the official website, Oceanutra Antarctic Krill Oil provides 1000 mg of krill oil per softgel. The Phospholipid-bound omega-3 fatty acids in Oceanutra Krill Oil are more water-dispersible, making them easier for your body to absorb and gentler on digestion. Sourced from wild-caught Antarctic krill and processed entirely in the USA, Oceanutra Antarctic Krill Oil is third-party tested for purity and traceability.
As per its official site, NYO3 Antarctic Krill Oil Amundsen Omega 3 Softgels are sourced from the pristine Antarctic waters and provide a potent combination of 270mg Omega-3s (EPA/DHA), 560mg marine phospholipids, 70mg choline per serving of two capsules.
NYO3 uses Superba Boost krill oil, which could help bind Omega-3s to phospholipids, enhancing bioavailability for better absorption and effectiveness. These nutrients could support your heart health, brain function, cognitive clarity, and liver health.
The official site also mentions that NYO3 Antarctic Krill Oil is ORIVO-certified for 100% purity and traceability, IFOS 5-star certified for potency, and IGEN non-GMO tested. It is free from gluten, preservatives, sugar, milk, and artificial colors or flavors, and it uses FLEXITECH extraction to preserve nutrient integrity.
Consuming krill oil supplements may cause bloating, gas, diarrhea, indigestion, and abdominal cramping. These issues typically arise during the early stages of supplementation, particularly in people who are not used to consuming high amounts of dietary fats or oils.
Krill oil supplements contain omega-3 fatty acids primarily in phospholipid form, which differs structurally from the triglyceride form found in most fish oils. While this form is believed to enhance absorption, it may also alter the digestive process in some people, especially if you have sensitive stomachs or underlying gastrointestinal conditions like irritable bowel syndrome (IBS).
Krill oil products are naturally rich in choline and astaxanthin, both of which can influence digestive secretions. Choline can increase bile production, potentially leading to softer stools or diarrhea, while astaxanthin may impact gut microbiota, potentially causing stomach cramps.
Some people may experience “krill burps,” the regurgitation of a fishy flavor or odor shortly after taking krill oil supplements. This happens when the softgel dissolves too quickly in your stomach, releasing the oil and its smell before digestion begins. You're more likely to notice this if you take it on an empty stomach or use a lower-quality capsule that doesn't resist stomach acid.
Krill oil supplements contain tropomyosin and other shellfish-related proteins that can trigger an immune response. Symptoms of an allergic reaction might include mild, such as hives, skin rashes, or nasal congestion, to severe, including shortness of breath and swelling of the face or throat. Some krill oil supplements may contain trace residues of other marine contaminants or additives from the extraction process, which could increase the risk of allergic reactions.
Krill oil supplements contain high levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), both of which possess mild blood-thinning properties due to their anti-inflammatory effects on platelet aggregation. While this can be beneficial for your cardiovascular health, it also increases the risk of bleeding, specifically in people already taking anticoagulants (such as warfarin, aspirin, or clopidogrel). Potential symptoms of excessive blood thinning caused by Krill oil supplements include easy bruising, prolonged bleeding from cuts, nosebleeds, or, in rare cases, internal bleeding.
As per our evaluation, 1MD Nutrition KrillMD and Viva Naturals offer the most customer-friendly refund policies. 1MD gives you 90 days from the ship date with a free prepaid return label and no mention of the item needing to be unopened. Viva Naturals also provides a 90-day, no-questions-asked money-back guarantee for first-time purchases of $100 or less, making both options low-risk and flexible.
NatureMyst follows with a 30-day satisfaction guarantee that allows returns of opened products if you provide a brief explanation, but only for purchases made directly from their site or Amazon store.
NatureBell offers a 60-day money-back guarantee for quality or health-related issues, though shipping isn't refunded. Micro Ingredients accepts returns of unopened items within 30 days for U.S. customers who bought from their official Shopify site. On the other hand, Oceanutra allows 30-day returns but requires the bottle and proof of purchase, suggesting that opened items aren't eligible. Now Foods Krill Oil offers a 30-day return for unopened items if bought directly through their website, but you cover return shipping.
Pure Encapsulations and NYO3 both restrict returns to unopened items within 30 days, with Pure requiring preauthorization and NYO3 counting from the order date, not delivery. Jocko Super Krill Oil is the least flexible as it offers no returns unless the product is damaged or defective.
We reviewed each brand's history, presence in the industry, and customer feedback from Trustpilot and Better Business Bureau (BBB) ratings to evaluate brand credibility.
Now Foods ranks highest for brand reputation, backed by over 50 years in the industry and an A+ rating from the BBB. Pure Encapsulations also stands out with a long-standing presence and an A- BBB rating, though it lacks Trustpilot data.
1MD Nutrition shows moderate credibility w ith a 2.9 Trustpilot score from over 100+ reviews. Jocko Fuel has strong branding and a loyal following but lacks third-party ratings. Viva Naturals is widely available but carries a C- BBB rating and a 2.5 Trustpilot score from nearly 900 reviews, suggesting inconsistent customer experiences.
Micro Ingredients holds an F rating from the BBB, which raises serious concerns. Brands like NatureBell, NatureMyst, Oceanutra, and NYO3 have no third-party presence on BBB or Trustpilot, offering little public insight into reliability or customer service.
NatureBell Antarctic Krill Oil offers the best value at $26.99 for 240 softgels, making it suitable for the long-term, low-cost option. Micro Ingredients follows closely with $39.95 for 300 softgels, giving you bulk quantity without inflating the price.
NYO3 provides 90 softgels for $39.99, a mid-range price with a decent balance between quality and quantity. NatureMyst Superior Red Krill Oil ($26.99 for 60 capsules), Now Foods Krill Oil ($27.19 for 60 softgels), and Viva Naturals Antarctic Krill Oil ($26.95 for 60 capsules) are nearly identical in price.
Jocko Super Krill Oil comes in at $29.99 for 30 servings, noticeably higher per dose, while Oceanutra charges $44.95 for 60 softgels, which feels inflated given the lack of standout features. 1MD KrillMD is available at $49.00 for 60 softgels, delivering high quality but at a premium price. Pure Encapsulations Krill-plex ranks lowest in value at $81.60 for 60 capsules.
Thus, based on our evaluation for value for money, NatureBell and Micro Ingredients may offer better value for the price, while brands like 1MD and Pure Encapsulations might be a better fit for those who could be looking for higher quality and are willing to invest more on krill oil supplements.
Krill oil supplements could support cardiovascular, cognitive, and joint health. They may also offer better absorption, while the naturally occurring astaxanthin in their formulation can add antioxidant benefits.
The 10 best krill oil supplements featured in this blog post are selected for their manufacturing standards and bioavailability. However, these krill oil supplements come with some limitations. They generally contain lower concentrations of EPA and DHA than concentrated fish oil, and some people may experience gastrointestinal discomfort or develop a fishy aftertaste.
However, krill oil supplements should be combined with healthy eating habits and regular exercise. You can consider adding antioxidant-rich foods, such as berries, and leafy greens, to your routine, as these practices can also provide you with similar benefits to krill oil supplements, such as improved cellular health and better brain function.
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