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Daily Krill Oil Supplements Dosage

author image Elizabeth Patton
Elizabeth Patton is a Clinical Dietitian and Certified Diabetes Educator who has been writing since 2005. Her work has been published in the "Murray Ledger & Times," "Clinical Skill Builder for Food and Nutrition" and she is editor of Saint Anthony’s Medical Center's diabetes e-newsletter and blog. Patton holds a Master of Science in nutrition from Murray State University.
Daily Krill Oil Supplements Dosage
A close-up of krill oil supplements on a tray. Photo Credit: Jeng_Niamwhan/iStock/Getty Images

Krill are small crustaceans, similar to shrimp. Oil harvested from krill is rich in the omega-3 fatty acids eicosapentaenoic acid, EPA, and docosahexaenoic acid, DHA. The EPA and DHA content of krill is similar to that of oily fish, such as salmon and tuna, making krill oil a comparable substitute to consuming fish or fish oil capsules.

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Improved heart health is the most notable benefit of consuming omega-3 fatty acids. EPA and DHA taken together have been shown to reduce triglyceride and increase high-density lipoprotein, or HDL, levels, reducing the risk of heart attack and stroke. Omega-3 fatty acids also play a crucial role in normal growth and development, memory, circulation and cognitive performance.


One to 3 grams of krill oil is recommended per day. A randomized study published in the November 2010 issue of “Lipids” showed that 3 grams of krill oil, containing 543 milligrams EPA and DHA, was as effective in changing the lipid profile of subjects as 1.8 grams of fish oil, containing 864 milligrams EPA and DHA. The American Heart Association recommends that people with heart disease consume 1 gram EPA and DHA per day. Always talk to your doctor before beginning any new medication or dietary supplement.


Krill oil decreases blood coagulation and causes the blood to become thinner. People who have a bleeding disorder or take a blood-thinning medication, such as warfarin, should talk with their physician before initiating krill or fish oil supplementation. Krill oil contains the same protein found in shellfish, so you should not take krill oil if you are allergic to shellfish as you may experience an allergic reaction.


To maintain heart health, adequate EPA and DHA can be consumed through diet. The American Heart Association recommends that people without heart disease consume 4 ounces of fatty fish, such as salmon, albacore tuna or mackerel, at least twice per week. Flaxseed, canola oil and walnuts are also good sources of omega-3, although they are not as effective in lowering cholesterol as fish or fish oil. To protect your heart, include a variety of omega-3-containing foods in your diet regularly.

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