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24 September 2010

Krill oil may reduce arthritis symptoms: Mouse study

Daily supplements of krill oil may reduce the symptoms of arthritis, with the benefits linked to the omega-3 and antioxidant content of the ingredient, suggests a new study.

The study, which compares krill oil (Superba Krill Oil, Aker BioMarine) and fish oil, showed that addition of EPA and DHA to the diet of mice reduced levels of inflammation in a mouse model of arthritis.

“Krill oil provides protection in terms of arthritis scores and joint pathology in the CIA model. Thus, this source of (omega-3) fatty acids deserves more investigation as a food supplement for patients suffering from not only RA but also osteoarthritis and other inflammatory conditions,” wrote researchers from MD Biosciences (Zurich, Switzerland), Aker BioMarine, and Clanet (Finland) in the journal BMC Musculoskeletal Disorders.

Understanding krill

Krill are tiny shrimp gaining attention as a rich source of omega-3, as well as other nutrients.

There are about 85 species of the deepwater marine planktonic crustacean, or deepwater shrimp, which the planet's most abundant animal biomass and which when captured and converted to oil, pack 48 times the antioxidant punch of standard fish oils, according to ORAC antioxidant scales.

Study details

The researchers used an animal model of arthritis to evaluate the effects of krill or fish oil on markers of joint health. The levels of the omega-3 fatty acids EPA and DHA in the krill oil was 0.44 g of 100 grams of diet and 0.47 grams per 100 grams of diet in fish oil group.

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