March 8, 2006
Higher omega-3 fatty acid levels correlated with better moodA study funded by the
National Heart, Lung and Blood Institute of the National Institutes of Health, reported at the 64th Annual Scientific Meeting of the American Psychosomatic Society held in Denver on March 6, 2006, found that
people who have higher blood levels of omega-3 polyunsaturated fatty acids are more likely to report a positive mood. Omega-3 fatty acids are abundant in fish and fish oils, as well as flaxseeds, walnuts and other plant foods. Research has continued to reveal an array of benefits associated with their intake, although the majority of the studies have focused on their cardiovascular effects.
Sarah Conklin, PhD and colleagues at the University of Pittsburgh School of Medicine measured blood levels of omega-3 fatty acids in 106 healthy participants who were not asked to change their diets. Separate tests for depression, personality and impulsiveness were administered to all participants.
The researchers found that subjects with low omega-3 levels reported more mild to moderate symptoms of depression, a more negative outlook, and greater impulsivity. Those whose levels of the fatty acids were higher were discovered to be more agreeable. Dr Conklin, who is a postdoctoral scholar with the Cardiovascular Behavioral Medicine Program at the University of Pennsylvania School of Medicine's department of psychiatry, commented, "A number of previous studies have linked low levels of omega-3 to clinically significant conditions such as major depressive disorder, bipolar disorder, schizophrenia, substance abuse and attention deficit disorder. However, few studies have shown that these relationships also occur in healthy adults. This study opens the door for future research looking at what effect increasing omega-3 intake, whether by eating omega-3 rich foods like salmon, or taking fish-oil supplements, has on people's mood."
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