Fish Oil

Omega-3 fatty acids are key for normal development and growth. Since the human body cannot make omega-3 fatty acids, we have to get them from our diet. Omega-3 supplements have become one of the most popular supplements in the U.S. They're used to help prevent and treat a number of serious diseases. 

Studies show strong evidence that omega-3 fatty acids from fish oil can lower blood pressure and triglyceride levels. There's also good evidence that diets high in omega-3 fatty acids help with rheumatoid arthritis.

Omega-3 fatty acids have been studied in many other conditions including asthma, cancer, depression, psoriasis, and inflammatory bowel diseases such as Crohn's disease and ulcerative colitis. While some of these studies have been promising, they're still inconclusive.

Different types of omega-3 fatty acids can be confusing. There are the fish oils, which contain docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). Then there are the plant sources with alpha-linolenic acid (ALA), which is converted into omega-3 fatty acids in the body.

Studies have generally used fish oils as the source for omega-3 fatty acids. While plant sources with ALA may have the same benefits, less is known about them. For now, fish oils with DHA and EPA have the more established benefit. 

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