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Krill are tiny, shrimp-like crustaceans that flourish in the Antarctic Ocean and provide food for numerous aquatic animals. Oil made from krill has come on the market as an alternative to
Many grains, fruits, vegetables, sea vegetables, and vegetable oils contain significant amounts of essential fatty acids, but krill oil is an especially rich source.
Carotenoids are also found in many foods, especially yellow/orange and dark green fruits and vegetables. They are not essential nutrients (except insofar as some can be converted to vitamin A
Phospholipids are utilized in the body for numerous purposes, but they are not essential nutrients.
Based on its omega-3 fatty acid content, krill oil would be expected to have many of the same effects as fish oil. See the full Fish Oil article for a detailed discussion of these potential benefits.
A few studies have evaluated krill oil specifically. In one
Another double-blind study compared krill oil against fish oil for treatment of symptoms of
Based on its known constituents, krill oil would be expected to have little to no toxicity. Side effects seen in studies are limited to occasional digestive distress and allergic reactions. The only known potential concerns relate to possible blood-thinning effects: Fish oil is known to decrease blood coagulation, and in one case report it increased the effect of the blood-thinning medication warfarin
Last reviewed April 2009 by EBSCO CAM Review Board
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