YES!! Fish oil supplements, especially DHA (you can get it from algae if you do not like fish oils), seem to directly improve osteoarthritis symptoms, but more data is needed for us to be absolutely sure. But since it has so many benefits and no known side effects (save allergies or burping), we’d say try it and see if it works for you.Now some claims that big doses of fish oil (omega-3 fatty acid, our favorite fat) help osteoarthritis are, well, fishy. (The ones about its heart and brain benefits are not!) No studies have been done to definitively show that fish oil helps arthritis symptoms. There is one clear way fish oil or DHA can help arthritis, though (at least indirectly). Eating a Mediterranean diet is a healthy way to maintain or reach an ideal weight. That’s a big help for preventing arthritis and ensuring it doesn’t get worse. The diet includes a lot of omega-3s nuts. Your joints, heart, and brain will all thank you.