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Krill Oil

Also indexed as:Antarctic Krill Oil
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Krill is a shrimp-like crustacean that grows abundantly in the ocean.1 Krill from colder ocean regions is high in EPA and DHA, the same omega-3 fatty acids found in fish oil.Krill oil also contains phospholipids and antioxidants such as the carotenoid astaxanthin.2, 3 Animal research has found that a diet high in krill oil can significantly increase antioxidant activity and decrease potentially damaging free radicals in the liver.4
  • Reliable and relatively consistent scientific data showing a substantial health benefit.
  • Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
  • For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.

Our proprietary “Star-Rating” system was developed to help you easily understand the amount of scientific support behind each supplement in relation to a specific health condition. While there is no way to predict whether a vitamin, mineral, or herb will successfully treat or prevent associated health conditions, our unique ratings tell you how well these supplements are understood by the medical community, and whether studies have found them to be effective for other people.

For over a decade, our team has combed through thousands of research articles published in reputable journals. To help you make educated decisions, and to better understand controversial or confusing supplements, our medical experts have digested the science into these three easy-to-follow ratings. We hope this provides you with a helpful resource to make informed decisions towards your health and well-being.

This supplement has been used in connection with the following health conditions:

Used for AmountWhy
Dysmenorrhea
2 grams daily for one month; after that, 2 grams per day beginning eight days prior to menstruation and continuing for two days after the start 2 stars[2 stars]
Women who took krill oil had improved abdominal pain and reported using fewer pain relievers for menstrual pain than those who took fish oil in one study.
High Cholesterol
0.5 to 4 grams krill oil daily2 stars[2 stars]
Supplementing with krill oil is likely to help lower high triglyceride levels, but findings regarding its ability to improve cholesterol levels are mixed.
High Triglycerides
2 to 3 grams per day2 stars[2 stars]
Supplementing with krill oil may decrease triglycerides in people with elevated levels.
Osteoarthritis
300 mg per day 2 stars[2 stars]
In one study, people who took krill oil saw significant reduction in arthritis severity and used less pain-relief medication than those taking placebo.
Premenstrual Syndrome
2 grams daily for one month; after that, 2 grams per day beginning eight days prior to menstruation and continuing for two days after the start  2 stars[2 stars]
Krill oil has been shown in a double-blind trial to be an effective treatment for premenstrual syndrome, including emotional symptoms and breast tenderness.

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The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2025.