Fish oil is a source of omega-3 fatty acid that can be obtained by eating saltwater fish such as salmon, herring, halibut, or mackerel, or by taking it in supplement form. Omega-3 fatty acids, also known as polyunsaturated fats, are considered essential fatty acids because the body needs them but can't make them on its own. Omega-3 and fish oil consist of 3 different fatty acids that are essential for good health and normal growth; alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).
Reduced Triglyceride Levels
Triglycerides are a type of fat in the bloodstream that can cause hardening and narrowing of the arteries when levels are elevated. Researchers have always believed that polyunsaturated fats can help to lower these levels, but a study performed at the Stanford School of Medicine verified this theory. In a 12-week experiment of 60 moderately healthy adult males, some took fish oil and while the others were used as a control group. As expected, the males that consumed the fish oil supplements saw a decrease in their triglyceride levels of about 25 percent.
Heart Attack Prevention
Considering the theory that fish oil and omega-3 can keep triglycerides at a normal level, and that the American Heart Association adds that fish oil and omega-3 have the ability to slightly lower blood pressure, it is no wonder why it would lead scientists to believe they can help prevent heart attacks as well. Fish oil is believed to keep hearts healthy and lower the chance of a heart attack or stroke in people with cardiac disease, states MedlinePlus. Heart attacks are the result of a blockage of blood flow to a part of the heart, which is usually due to clogged or hardened arteries.
Reduced Symptoms of Arthritis
The Office of Dietary Supplements says people with rheumatoid arthritis can benefit from omega-3 fatty acids because of its anti-inflammatory properties. Although fish oil and omega-3 cannot cure rheumatoid arthritis or prevent the joints from being damaged, they can reduce the symptoms of the autoimmune disease, such as joint tenderness and morning stiffness. Research performed by the Office of Dietary Supplements also shows there is a link between these supplements and a reduction in use of non-steroidal anti-inflammatory drugs to control to the pain.
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