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Smart Choice

This is a quality product and I use it in conjunction with their curcumin product. I am an aging athlete and I believe that this is helping my joints tremendously.

Reviewed by Pam M., from United States
Verified Buyer


Rated 4.9 out of 5
75 Reviews
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Krill Oil naturally supports healthy 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.

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


Natural Stacks “Open Source” transparency program provides ingredient traceability and 3rd party lab test results for every batch. It’s powered by blockchain technology and secured by HealthLoq™ for transparent, tamperproof, trusted data.


Serotonin Brain Food

The superior omega-3 supplement for physical and mental health.

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 gives 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 both 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 120 mg DHA and 75 mg EPA. [1]

300 Mcg Of Astaxanthin (7X More Than Most Krill Oil Products)

Naturally found in krill, astaxanthin is a powerful ingredient. The only two main sources of this fat-soluble ingredient 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 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 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 - 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]*

Suggested Use

Take 1 serving per day with a meal, or as directed by a healthcare practitioner.


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. Simply give us a call at 855-678-2257 or email us at and we'll take care of you.

Why Buy From Us?


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.


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