OMEGA-3 WARDS OFF DEPRESSION IN WOMEN
In a large American study of 3,317 adults, diet was assessed for omega-3 essential fat intake, and mood was monitored for depressive symptoms over a period of 10 to 20 years. In women, those with the highest intake of fish and fish oils had the lowest incidence of depression and vice versa. The results for men were not particularly impressive.
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Higher dietary intake of long-chain omega-3 polyunsaturated fatty acids is inversely associated with depressive symptoms in women. Colangelo et al., Nutrition. 2009 Feb 3.