While the use of nutritional supplements for osteoarthritis (OA) has focused largely on the duo of glucosamine and chondroitin, research suggests that a popular supplement for heart disease and rheumatoid arthritis may also help OA – fish oil. Fish oil is the best source of omega-3 fatty acids, essential fatty acids our body needs to function properly.

Most studies of the effectiveness of fish oil for osteoarthritis have been done on animals, but a few studies have also been done in humans.
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