Omega-3 Fatty Acid Supplements Increase IGF-1

Low levels of the anabolic hormone IGF-1 are linked to an increased death risk in people with cardiovascular disease. Omega-3 fatty acids are protective against heart disease and work by enhancing blood vessel health. An Iranian study showed that supplementing omega-3 fatty acids increased IGF-1 levels in people with coronary artery disease. While interesting, this study does not show that taking omega-3 fatty acid supplements will decrease the risk of heart attack. However, this was an interesting study that might have important implications for preventing heart disease. (Nutrition, 31:480-484, 2015)

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