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Krill Oil

What is krill oil?

Krill are tiny shellfish that float in the Antarctic and other cold waters, feeding on algae and plankton rich in omega-3 fatty acids and antioxidants. Omega-3 fatty acids are the building blocks of lipids, hormones, the nervous system, and cell membranes in our body.

Krill provides eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), two omega-3 fatty acids required in the body for maintaining overall health. Omega-3 DHA is a major component of brain and nerve tissue and plays a vital role in brain development and function throughout your life. EPA acts as a primary building block for the cells in your vital organs, and facilitates communication between the cells in your brain by increasing membrane fluidity and optimal cell signaling. Krill oil naturally contains the antioxidant astaxanthin, which provides supplement stability and preservation.

What is krill oil used for?  

Studies suggest that regular supplementation with krill oil can supply necessary energy for cells, provide nervous system support, reduce oxidative stress, support the joints, and promote cardiovascular health.* Supportive but not conclusive research also shows that consumption of EPA and DHA omega-3 fatty acids may reduce the risk of coronary heart disease.*

Where does NatureWise get its krill oil?

Euphausia. It extracts its krill from the Antarctic species phospholipids, as well as 400 mg of DHA Krill Oil consists of 100% Superba™ Krill, 220 mg of omega-3 EPA and NatureWisesuperba. Due to its special harvesting techniques, Superba™ Krill is the only krill oil to receive full sustainability certification by the Marine Stewardship Council (MSC). 

What is the role of the phospholipids?

Phospholipids, the building blocks for your cell membranes that help to regulate cellular transport, support enhanced omega-3 fatty acid absorption. Unlike fish oils, pure krill oil carries omega-3 fatty acids in the form of phospholipids. By encapsulating the omega-3 oils in the same material as your cell membranes, phosopholipids help the omega-3s in krill oil to be more efficiently delivered to the cell. Some studies suggest that the most effective carriers of EPA and DHA are these phospholipids. Standard fish oils lack this phospholipid complex. Instead they supply omega-3 fatty acids in the form of free triglycerides. Thus a gram of fish oil may contain more EPA and DHA than krill, but is absorbed less efficiently.

Is krill oil easily perishable like some fish oil supplements?

Superba™ Krill has astaxanthin, an antioxidant, which protects against perishability and creates product stability, extending its shelf life.

Are krill harvested using eco-friendly practices?

The Eco-Harvesting technology that produces NatureWise Krill Oil uses a specially designed trawl and direct hose system that singles out unwanted by-catch and releases it, unharmed. This restricts environmental impact and prevents the krill from enzymatic degradation, allowing for greater preservation of all key nutrients in the end product, and complete utilization of the krill without waste. In addition, the custom-built vessel processes krill meal immediately after the krill is on board. This infrastructure ensures continuous delivery of krill meal to a climate-controlled warehouse from which it is carefully transported to market.

Superba™ Krill is the only krill oil in the world that provides you with the exact GPS coordinates of your catch, printed right on the NatureWise product label. Using the OmegaTrack™ software on the NatureWise website, consumers can type in the coordinates to track the exact location of the NatureWise Krill Oil catch and harvest.

What is the astaxanthin amount in this product?

Astaxanthin is a naturally occurring antioxidant in all krill oil. Because it’s naturally occurring in optimal amounts in all krill oil, NatureWise does not include it in our ingredient information, nor do we add additional astaxanthin from non-krill sources as some brands do.

What is the suggested use?

The suggested use for NatureWise Krill is as follows:

  • Adults take 2 softgels daily with food, or as directed by a healthcare professional.

Is krill safe?

The information from studies done to date suggest that krill is safe* when taken according to instructions.

Long-term use

Studies of krill conducted up to 3 months suggest that it is safe. 

Note: NatureWiseThe duration of time for which a product is investigated does not necessarily equate with the actual duration of its safety. For example, although some of our safety data may not go beyond 6 months, 12 weeks, or even 6 weeks, it does not mean that it is unsafe to use past this time frame.This is only the information provided by published research available to date. There may be ongoing studies investigating the safety of any given product and/or ingredient that well exceed the length of the available publications.  The products that manufactures are considered safe and backed by research.

Pregnancy and breast-feeding 

Women who are pregnant or breast-feeding should avoid use, since there is insufficient reliable information in this population.

What adverse reactions or side effects are reported with krill oil?

Other omega-3 supplements, such as fish oil, have been known to cause side effects such as bad breath, “fishy” burps, heartburn, nausea, or loose stools. These have not been reported in studies with krill oil.

Very high doses of krill (and other forms of omega-3) can increase the risk of bleeding, especially when combined with blood thinners (drugs that prevent blood clotting). 

What about mercury levels associated with seafood?

While contaminant poisoning from supplements is rare, mercury and PCB contamination is a concern with any types of fish. Certain types of seafood, such as mackerel, swordfish, and canned albacore tuna carry high levels of mercury. Generally, fish with higher levels of contaminants tend to be the “big fish,” those that consume the smaller fish. Krill is a tiny species of shellfish, and a bottom feeder. A complete list evaluating the different mercury levels of seafood is here:

Are there any drug or herb interactions reported with krill oil?

Most herbs and supplements have not been thoroughly tested for interactions with other herbs, supplements, drugs, or foods. Although by no means an exhaustive list, the interactions listed below are based on reports in scientific publications, laboratory experiments, or traditional use. If you have a medical condition, or are taking other drugs, herbs, or supplements, you should speak with a qualified healthcare provider before starting a new medication or supplement.

  • Drugs
    • Anticoagulant/antiplatelet herbs and supplements
    • Antidiabetes drugs
    • Orlistat (Xenical)

Krill may have have blood-thinning effects, which may intensify when taken together with drugs or supplements that inhibit coagulation/platelet aggregation (blood clotting).

Research shows that krill oil may lower glucose (blood sugar) levels. Theoretically, krill oil might increase the effects of drugs or supplements indicated to lower blood sugar and increase the risk of hypoglycemia.

Drugs that inhibit fat absorption may also decrease absorption of krill oil.

  • Herbs/dietary supplements

Supplements that may have blood thinning effects:

  • Angelica
  • Clove
  • Danshen
  • Garlic
  • Ginger
  • Ginkgo
  • Turmeric
  • Willow

Supplements with potential effects on blood sugar:

  • Alpha-lipoic acid
  • Bitter melon
  • Chromium
  • Devil's claw
  • Fenugreek
  • Garlic
  • Guar gum
  • Horse chestnut
  • Panax ginseng
  • Psyllium
  • Siberian ginseng

If a drug or dietary supplement is not on the list, does this mean there are no interactions?

The drug (or dietary supplement) you inquired about is not listed on our current list of known interactions. We strongly recommend that you consult your physician regarding your personal healthcare needs.

Are there any disease interactions reported with krill oil?

  • Bleeding disorders
  • Diabetes
  • Shellfish allergies
  • Surgery (bleeding risk)

Are there any food interactions reported with krill oil?

There are none reported.

What else do I need to know about NatureWise Krill Oil?

NatureWise Krill is manufactured in the USA, using non-GMO, gluten-free ingredients.

People who are pregnant or nursing, have a shellfish allergy, coagulopathy, or taking anticoagulants or other medications should notify their physician and be tested prior to taking this supplement.

Each softgel capsule comprises 100% Superba™ Krill Oil. The softgel is composed of bovine gelatin, glycerin, and water, and also contains ethyl vanillin. NatureWise Krill Oil contains no yeast, wheat, gluten, dairy, corn, soy, eggs, sugar, tree nuts, peanuts, or hydrogenated oils.


FDA Disclaimer About Health Claims

Please note that the following statement is required to accompany a health claim, such as “may promote cardiovascular health.” It appears on all NatureWise labels and sales copy.

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

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