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Antarctic Krill Oil

For Superior Omega-3 Support
Rated 4.9 out of 5
100 Ratings
Regular price $31.95 List price


  • Superior Omega-3 Support
  • Support heart, brain, and joint health
  • Natural anti-inflammatory

Fish Oil but Better!

Krill Oil delivers a superior dose of omega-3s supporting heart, brain, and joint health.

Krill Oil has significantly greater bio-absorption than fish oil.

Krill Oil contains natural antioxidants including vitamin A. and vitamin E.

Vitalize your life!

Krill Oil is a natural anti-inflammatory that supports brain function and muscle growth.

It is an essential booster for all around health.

Use Krill Oil to optimize the way you move, think, and feel.

How It Works

Omega-3 fatty acids docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) have been proven to support the body’s natural anti-inflammatory response, support cognitive function, and promote muscle growth. The problem is that the most common sources of EPA / DHA are fish oils that are poorly sourced and processed. Typically they’re low potency, contaminated, and/or oxidized.

Natural Stacks™ Krill Oil uses only sustainably harvested krill from the pristine Antarctic ocean. It’s immediately cold-pressed while still on board the vessel to preserve the biological benefits of the krill. Then it goes through a proprietary purification process and is lab tested to ensure that the krill oil has absolutely zero toxins, heavy metals, or other impurities.

Krill oil is superior to fish oil because the EPA and DHA omega-3 fatty acids in krill are bonded to cell-building phospholipids. This give krill oil significantly greater bio-absorption than fish oil. Also krill oil contains natural antioxidants including vitamin A, and vitamin E, and astaxanthin.

Optimal EPA / DHA Ratio

Our krill oil complex is formulated to outperform any other marine oil product on the market. We used small amount of Friend Of The Sea-certified tuna oil to increase the ratio of DHA to EPA, because DHA is the primary structural component of the brain.

DHA is essential for neurological development and function, while EPA can influence mood. They’re both anti-inflammatory and have complementary effects, but DHA appears to be more important for optimal performance because it’s the predominant fatty acid in the brain and nervous system.

Almost all wild caught fish has more DHA than EPA, yet most fish oil supplements on the market have more EPA than DHA because of their low grade sourcing techniques. Natural Stacks™ Krill Oil contains 160 mg DHA and 80 mg EPA. [1]

300 mcg of astaxanthin (7X more than most Krill Oil products)

Naturally found in krill, astaxanthin is thought to be the most powerful antioxidant found in nature. The only two main sources of this fat-soluble antioxidant are the microalgae that produce it (haematococcus pluvialis) and the sea creatures that consume the algae. It’s what gives salmon their pink color and is the driving force behind their incredible endurance.

Most krill oil products don’t say how much astaxanthin is in their product. Natural Stacks™ Krill Oil proudly offers 300mcg of the super-antioxidant in every serving.

Improved brain function

Last year, Japanese scientists examining 45 healthy elderly males concluded that “n-3 polyunsaturated fatty acids activate cognitive function in the elderly. This is especially the case with krill oil, in which the majority of n-3 polyunsaturated fatty acids are incorporated in phosphatidylcholine, causing it to be more effective”. [2]

A recent 7-week rodent study found “a robust antidepressant-like potential and beneficial cognitive effect of Krill Oil”. The results indicated that the “active components (EPA, HDA, and astaxanthin) in Krill Oil facilitate learning processes”. [3]

After a 35 days experiment on healthy people, it was discovered that “Omega-3 supplementation is associated with an improvement of attentional and physiological function, particularly those involving complex cortical processing”. [4]

Krill Oil as a Natural Anti-Inflammatory

A randomized, double blind, placebo controlled study on 90 patients clearly indicated that a daily dose of krill oil “significantly inhibits inflammation and reduces arthritic symptoms within a short treatment period of 7 and 14 days”. [5]

A rodent study evaluating to the impact of krill oil on arthritis found that “mice fed the krill oil diet demonstrated lower infiltration of inflammatory cells into the joint” and suggested that “krill oil may be a useful intervention strategy against the clinical and histopathological signs of inflammatory arthritis”. [6]

Krill Oil - superior to Fish Oil

A 2013 double blind, placebo-controlled study on 24 healthy volunteers found that “Krill oil consumption increased plasma n-3 PUFA concentration, including EPA and DHA, and reduced n-6:n-3 ratios compared with fish oil”. [7]

In a recent double-blind crossover trial comparing krill oil with fish oil demonstrated that “the highest incorporation of EPA+DHA into plasma phospholipid was provoked by krill oil”. Researchers found an “unexpected high content of free EPA and DHA in krill oil, which might have a significant influence on the availability of EPA+DHA from krill oil”. [8]

A study comparing krill oil with fish (menhaden) oil discovered that “when expressed per mg of EPA or DHA consumed there was a trend toward a greater increase in plasma EPA and DHA with krill oil”. [9]



Krill are tiny shrimp-like crustaceans with an impressive nutritional profile. As a life-sustaining foundation for a complex food chain, they are the largest animal biomass on the planet. A small amount of high quality fish oil from wild caught tuna is added to our Krill Oil Complex to increase the amount of DHA, a major structural component of the brain. Both of these oils are certified by Friend of the Sea.


Astaxanthin is a free radical scavenger that protects your cells from oxidative damage. It has potent anti-inflammatory properties that can boost your immune system, promote cardiovascular health, and improve endurance.

Suggested Use

Take a serving of 1 to 2 servings per day, or as directed by a healthcare practitioner.

U.S.A. manufactured in a cGMP facility. Natural Stacks proudly uses only the highest quality ingredients.

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Open Source

Most companies use "proprietary blends" so they don't have to tell you the amount of each ingredient in their formulas. At Natural Stacks we believe it's your right to know exactly what you're putting into your body. We proudly publish our innovative formulas and ingredient suppliers in an open source format.

Learn About Our Commitment To Transparency

100% Happiness Guarantee

If for whatever reason you're unsatisfied with your Natural Stacks supplements, you can keep the full bottle on us and we'll refund your money. Anything after the first bottle, we'll ask that you return for a refund.

User Reviews

average rating 4.9 out of 5
Based on 100 ratings
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100% of reviewers would recommend this product to a friend
69 Reviews
Rated 5 out of 5
Review posted

Krill Oil that fits the bill

Helps to balance my omega 3 to omega 6 ratio and I definitely notice the effect of the phospholipids on the brain. This is definitely one of the cleaner and higher quality krill oils available on the market. Love the transparency offered around who they source from (go ahead and research them, it’s printed right on the bottle...good stuff...).

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Rated 5 out of 5
Review posted

High quality ingredients.

Krill oil was recommended to me by my Ayurvedic practioner. She also recommended this company. The supplement iI ordered is high quality and I have received very good customer service.

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Rated 5 out of 5
Review posted

Take this at night!

The only downside I see to this product is that it does leave a little "fish burp." Take it at night (as directed) and the fishy-ness is negated completely. Otherwise, it's been great and my health has been great! The size of the pill is also a bonus...some fish oil pills are the size of a small car. These pills are small and easy to swallow.

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Rated 5 out of 5
Review posted

Best Krill Oil

I’ve been on the lookout for a good fish oil given it’s multiple benefits. I’ve tried various combinations of DHA / Omega oils but found NS Krill Oil the best. The dose is adequate, no fishy burps and works brilliantly when combined with NS Vit D3. Please launch a Vit K too to complete the set.

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Rated 5 out of 5
Review posted

Good stuff

I have always taken fish oil and decided to try krill oil. I love Natural stacks for the true ingredients and keeping the trash out of supplements so I chose this krill oil. I feel good!

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Citations & References


2. Konagai, C., Yanagimoto, K., Hayamizu, K., Han, L., Tsuji, T., & Koga, Y. (2013). Effects of krill oil containing n-3 polyunsaturated fatty acids in phospholipid form on human brain function: a randomized controlled trial in healthy elderly volunteers. Clinical interventions in aging, 8, 1247.

3. Wibrand, K., Berge, K., Messaoudi, M., Duffaud, A., Panja, D., Bramham, C. R., & Burri, L. (2013). Enhanced cognitive function and antidepressant-like effects after krill oil supplementation in rats. Lipids in health and disease, 12(1), 6.

4. Fontani, G., Corradeschi, F., Felici, A., Alfatti, F., Migliorini, S., & Lodi, L. (2005). Cognitive and physiological effects of Omega‐3 polyunsaturated fatty acid supplementation in healthy subjects. European journal of clinical investigation, 35(11), 691-699.

5. Deutsch, L. (2007). Evaluation of the effect of Neptune Krill Oil on chronic inflammation and arthritic symptoms. Journal of the American college of nutrition, 26(1), 39-48.

6. Ierna, M., Kerr, A., Scales, H., Berge, K., & Griinari, M. (2010). Supplementation of diet with krill oil protects against experimental rheumatoid arthritis. BMC musculoskeletal disorders, 11(1), 136.

7. Ramprasath, V. R., Eyal, I., Zchut, S., & Jones, P. J. (2013). Enhanced increase of omega-3 index in healthy individuals with response to 4-week n-3 fatty acid supplementation from krill oil versus fish oil. Lipids in health and disease, 12(1), 178.

8. Schuchardt, J. P., Schneider, I., Meyer, H., Neubronner, J., von Schacky, C., & Hahn, A. (2011). Incorporation of EPA and DHA into plasma phospholipids in response to different omega-3 fatty acid formulations-a comparative bioavailability study of fish oil vs. krill oil. Lipids in health and disease, 10(1), 145.

9. Maki, K. C., Reeves, M. S., Farmer, M., Griinari, M., Berge, K., Vik, H., ... & Rains, T. M. (2009). Krill oil supplementation increases plasma concentrations of eicosapentaenoic and docosahexaenoic acids in overweight and obese men and women. Nutrition research, 29(9), 609-615.

†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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