You’re ready to add an omega-3 supplement to your daily routine, but the aisle is crowded with fish oil and krill oil options. Each claims superior benefits for heart health, brain function, and joint comfort. Yet the difference between omega 3 vs krill oil goes beyond the label. In this guide, we break down absorption, purity, and aftertaste to help you decide which type works best for your body. For a deeper dive into the two main contenders, check out our detailed comparison of fish oil vs krill oil.
We evaluated five top-rated products: three krill oil supplements from MegaRed and Kori Krill, one double-strength krill oil from Sports Research, and one combination fish plus krill oil from MegaRed. Each brings a unique blend of EPA, DHA, and phospholipids. Our goal is to provide clear, evidence-based guidance so you can make an informed purchase without the hype.
Pros
- High purity and potency from Antarctic krill
- No fishy aftertaste or burps
- Easy absorption due to phospholipid form
- Supports heart health with EPA and DHA
- Contains antioxidant astaxanthin for added protection
Cons
- May melt if exposed to heat or sunlight during delivery, so need to be present to receive
- Softgels are relatively large, which might be hard for some to swallow
- Price per serving is higher than standard fish oil supplements
MegaRed Omega-3 Krill Oil 350mg softgels are a premium supplement designed for individuals who want to support their heart health without the unpleasant fishy aftertaste common with fish oil. Made from 100% pure Antarctic krill, this product is three times more pure than regular krill oil, ensuring you get a concentrated dose of EPA and DHA omega-3 fatty acids. It is ideal for health-conscious adults looking for an easy-to-absorb omega-3 source that fits into a daily routine.
The standout feature of this krill oil is its phospholipid form, which allows the omega-3s to be easily recognized and absorbed by the body, leading to better bioavailability compared to standard fish oil. Additionally, the inclusion of the natural antioxidant astaxanthin helps protect the oil from oxidation, maintaining its freshness. Users report no fishy aftertaste or burps, making it a pleasant experience overall. The recommended dose is just one softgel per day, providing 350mg of pure krill oil.
The softgels are packaged in a 130-count bottle, offering a convenient 4-month supply. The design is straightforward, with a red color and compact dimensions that are easy to store. However, the product note warns that exposure to heat or sunlight may cause melting or damage, so you need to be available during delivery to ensure the product remains intact. This is a minor inconvenience but worth noting for those in warm climates or with busy schedules.
Potential drawbacks include the larger size of the softgels, which might be difficult for some people to swallow. Also, the price per serving is higher than many fish oil supplements, reflecting the premium quality of Antarctic krill oil. Some users may prefer a lower-cost option, but for those prioritizing purity and absorption, the extra cost is justified.
Overall, MegaRed Omega-3 Krill Oil is an excellent choice for anyone seeking a high-quality, easily absorbed omega-3 supplement without the fishy aftertaste. Its heart health benefits and antioxidant properties make it a valuable addition to a daily wellness regimen. If you can manage the delivery requirements and don't mind the softgel size, this product delivers on its promises.
Brand: MegaRed
Product Type: Krill Oil Supplement
Dosage: 1 softgel daily
Amount per Serving: 350mg pure krill oil
Key Ingredients: EPA, DHA, Astaxanthin
Count: 130 softgels per bottle
Form: Softgel
Dimensions: 2.23 x 7 x 8 inches
Weight: 0.29 pounds
Color: Red
Pros
- No fishy aftertaste or burps
- High bioavailability due to phospholipid-bound omega-3s
- Includes choline for added heart and brain support
- Sustainably sourced and third-party tested for purity
Cons
- Higher price point compared to standard fish oil
- Softgels may be large for some users
- Only 60 softgels per bottle, which may require frequent repurchase
Sports Research Antarctic Omega-3 Krill Oil offers a premium alternative to traditional fish oil. Each softgel delivers 1000mg of pure Antarctic krill oil, rich in omega-3 fatty acids EPA and DHA, plus naturally occurring choline and astaxanthin. This supplement is designed for health-conscious individuals who want to support their heart, brain, and joint function without the unpleasant fishy aftertaste often associated with fish oil.
The standout feature of this krill oil is its phospholipid-bound omega-3s, which significantly enhance absorption in the body. Users report no fishy burps or aftertaste, making it a pleasant daily supplement. The inclusion of choline further supports cognitive and cardiovascular health, while astaxanthin provides antioxidant benefits. Real-world performance is backed by its MSC certification and third-party testing for heavy metals.
Design and build quality are excellent. The softgels are smooth and easy to swallow, though some may find them slightly large. The bottle is sturdy and clearly labeled with dosage and ingredient information. Sports Research’s commitment to purity is evident: the product is Non-GMO, Gluten Free, and free from artificial additives like sorbitol and ethyl vanillin.
A potential drawback is the cost per serving, which is higher than many fish oil supplements. Additionally, the 60-count bottle may not last long for those taking multiple softgels daily. However, for those who prioritize absorption, purity, and no aftertaste, the investment is worthwhile.
Overall, Sports Research Antarctic Omega-3 Krill Oil is a top-tier choice for anyone seeking a high-quality omega-3 supplement. It delivers on its promises of enhanced bioavailability, no fishy aftertaste, and sustainable sourcing. While the price is higher, the benefits and purity justify the cost for those committed to their health.
Pros
- 2X more Omega-3s vs standard fish oil for improved efficacy.
- Dual source (fish + krill) offers a broader spectrum of fatty acids.
- Phospholipid form of krill oil enhances absorption.
- Only one softgel per day for comprehensive support.
- Sourced from sustainable Antarctic krill, eco-friendly.
Cons
- May cause mild fishy burps or aftertaste in sensitive individuals.
- Contains krill (a crustacean) which may be a concern for those with shellfish allergies.
- Softgels might be larger than typical fish oil capsules, which could be harder to swallow.
MegaRed Advanced 4-in-1 Omega 3 supplement is designed for adults who want a potent, all-in-one solution for heart, brain, joint, and eye health. It combines high-concentration fish oil with Antarctic krill oil, delivering twice the Omega-3s of standard fish oil in a single daily softgel.
The standout feature is its dual-source formulation. The fish oil provides high levels of EPA and DHA, while the krill oil carries these fatty acids in phospholipid form, which may be more easily absorbed by the body. This synergy makes it a strong choice for those seeking maximum benefit from their omega-3 supplement.
In terms of design, the softgels are easy to take once a day. The bottle is compact and the product is eligible for Medicare Advantage OTC benefits, adding convenience. The krill is sourced from the Antarctic, emphasizing sustainability and environmental responsibility.
Potential drawbacks include the possibility of mild fishy burps, common with fish oil supplements, and the softgel size may be larger than some alternatives. Additionally, krill is a crustacean, so those with shellfish allergies should consult a doctor before use.
Overall, the MegaRed Advanced 4-in-1 offers a compelling blend of quality and convenience. It is an excellent choice for anyone looking to boost their omega-3 intake with a trusted brand that supports multiple health areas in one capsule.
Pros
- High purity and superior absorption due to phospholipid structure
- No fishy aftertaste, a common complaint with fish oil supplements
- Includes antioxidant astaxanthin for added heart and cellular health benefits
- Sustainably sourced from Antarctic krill
- Supports heart health with clinically relevant omega-3 levels
Cons
- Higher price point compared to standard fish oil supplements
- Only 90 softgels per box, requiring regular repurchase for long-term use
MegaRed Antarctic Krill Oil is a premium omega-3 supplement designed for those who want a pure, effective heart health boost without the unpleasant fishy aftertaste. It is ideal for adults seeking a high-quality krill oil that is easily absorbed and supports cardiovascular wellness.
Standout features include the patented PureTech process that makes this oil 3x more pure than regular krill oil. The phospholipid form allows the omega-3s (EPA and DHA) to be better absorbed by the body, and the addition of astaxanthin provides antioxidant protection. Users can expect a significant increase in their omega-3 index within 30 days.
The softgels are small and easy to swallow, with no fishy odor or aftertaste. The packaging is a standard 90-count box, which is convenient for a one-month supply. The product is sourced from sustainable Antarctic krill, ensuring environmental responsibility.
One potential drawback is the higher cost per serving compared to traditional fish oils. Additionally, there are limited customer reviews available at this time, so long-term user feedback is sparse. However, the brand MegaRed is well-established in the supplement market.
Overall, MegaRed Antarctic Krill Oil is a top-tier choice for anyone looking to support heart health with a clean, absorbable, and great-tasting omega-3 supplement. It delivers on its promises of purity and efficacy, making it worth the investment for those who prioritize quality.
Pros
- Enhanced absorption due to phospholipid-bound omega-3s
- Supports seven key health areas: heart, brain, joints, eyes, skin, immune, and liver
- Includes astaxanthin for antioxidant benefits
- No fishy burp or aftertaste
- Sustainably sourced and non-GMO
Cons
- Price may be higher compared to standard fish oil supplements
- Only 90 softgels per bottle; might not be the most economical for daily use
- Limited customer reviews available, making it harder to gauge long-term satisfaction
Kori Krill Oil Omega-3 EPA DHA, Phospholipids & Astaxanthin is a premium krill oil supplement designed for those who want maximum omega-3 absorption and broad health benefits. It is particularly suited for adults seeking to support heart, brain, joint, and liver health without the unpleasant aftertaste of fish oils.
The standout feature is its concentrated phospholipid form, delivering 560mg of phospholipids per serving. This ensures the omega-3s (EPA and DHA) are efficiently distributed to vital organs, leading to higher bioavailability than traditional fish oil. Additionally, the inclusion of 70mg choline and natural astaxanthin provides extra support for cognitive function and antioxidant protection.
In terms of real-world performance, Kori claims this formula can raise omega-3 index levels within 30 days, which is backed by clinical research. Users can expect no fishy burps or aftertaste thanks to the molecular distillation process. The softgels are easy to swallow, and the 90-count bottle offers a one-month supply at the recommended dose of 3 softgels daily.
A potential drawback is the price point, which is higher than many standard fish oil supplements. Also, with zero customer reviews at launch, it may take time to build trust. However, the brand emphasizes sustainable Antarctic sourcing and rigorous quality testing.
Overall, Kori Krill Oil is a high-quality choice for those willing to invest in superior absorption and multi-system health support. If you prioritize bioavailability and want to avoid fishy side effects, this supplement is worth trying.
Buying Guide: Key Factors in Omega 3 vs Krill Oil
Absorption and Bioavailability
One of the biggest differences between omega 3 from fish oil and krill oil is how your body uses them. Krill oil carries its EPA and DHA in phospholipid form, which mirrors the structure of cell membranes. This allows for more efficient absorption compared to the triglyceride form found in most fish oils. If you want maximum uptake per dose, krill oil typically wins.
Our top pick for easy absorption is the Sports Research® Antarctic Omega-3 Krill Oil. It provides a double-strength 1000 mg serving with high phospholipid content, verified by third-party assessments for purity. For a combined approach, the MegaRed Omega 3 Fish Oil & Antarctic Krill Oil blends both forms to boost fatty acid levels.
Purity and Sustainability
Not all omega-3 sources are created equal when it comes to environmental impact and contaminant levels. Krill is a renewable resource harvested from the Antarctic, and many premium brands carry sustainability certifications. Meanwhile, fish oil can vary widely in source and processing quality. Look for products that are non-GMO, gluten-free, and free of heavy metals.
The Sports Research krill oil is MSC Certified Sustainable and produced in a cGMP-compliant facility. The Kori Krill Oil Omega-3 EPA DHA also supports sustainable harvesting and is independently evaluated. For a comprehensive look at how plant-based alternatives compare, see our guide on fish oil vs plant based omega 3.
Omega-3 Content and EPA/DHA Levels
When comparing omega 3 vs krill oil, consider the actual amount of EPA and DHA per serving. Fish oil often provides higher total omega-3s per capsule, but krill oil offers better absorption so you may need less. Some products combine both for a synergistic effect. If you want a concentrated dose, the MegaRed Antarctic Krill Oil 500mg is 3x more pure than standard krill oil and provides potent EPA and DHA along with astaxanthin.
For a balanced option with higher total omega-3s, the MegaRed Omega 3 Fish Oil & Antarctic Krill Oil delivers 2x more omega-3s than standard fish oil alone, supporting heart, joint, brain, and eye health. This combination may be ideal if you want the best of both worlds.
Aftertaste and Digestive Comfort
Fish oil’s notorious fishy burps have driven many people to krill oil. The phospholipid structure of krill oil prevents the typical reflux of fishy oil into the throat, and the natural antioxidant astaxanthin reduces oxidation. All the krill oil products we reviewed promise no fishy aftertaste. If you have a sensitive stomach, krill oil is a gentler choice.
The MegaRed – Omega-3 Krill Oil 350mg Softgels are specifically designed for easy digestion and zero aftertaste. The Kori Krill Oil also emphasizes a no-burp, no-fishy-aftertaste formula, making it a convenient daily supplement. For more on circulation support, read our guide on supplements for healthy blood flow.
Final Thoughts
After evaluating the key differences in absorption, purity, omega-3 content, and digestive comfort, we recommend Sports Research® Antarctic Omega-3 Krill Oil for those who want the highest bioavailability in a single daily softgel with verified sustainability. For anyone seeking a broader omega-3 profile that combines fish and krill oil, the MegaRed Omega 3 Fish Oil & Antarctic Krill Oil offers a convenient 4-in-1 solution supporting heart, brain, joints, and eyes. Both options deliver proven benefits without the fishy aftertaste, making them strong contenders in the omega 3 vs krill oil debate.
Frequently Asked Questions
Is krill oil better than fish oil for inflammation? Krill oil’s phospholipid form may allow for faster delivery to cells, and its astaxanthin content adds antioxidant benefits. Some studies suggest krill oil can reduce inflammation markers more effectively than fish oil, but both are beneficial.
Can I take fish oil and krill oil together? Yes, combining them can increase total omega-3 intake. The MegaRed Omega 3 Fish Oil & Antarctic Krill Oil is already formulated to provide both sources in one softgel.
How long does it take for krill oil to raise omega-3 levels? Clinical studies show that krill oil can significantly increase your omega-3 index in as little as 30 days. For best results, take it consistently with a meal that contains fat.
Which has more omega-3 per serving: fish oil or krill oil? Standard fish oil often contains more total EPA and DHA per capsule, but krill oil’s superior absorption means you may not need as much. Always compare the actual EPA/DHA amounts on the label. For a detailed breakdown of different omega sources, read our fish oil vs flaxseed oil comparison.
For additional insights on circulation and vital nutrients, see our article on essential nutrients for healthy circulation in 2026.
