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What is the relationship between omega 3 and depression?

Keyword(s) :    mood disorders diets

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Depression is less prevalent in communities that naturally consume significant amounts of omega 3 fatty acids in their diets.  Omega 3 fatty acids naturally occur in fish, which has led to the belief that fish oils may help prevent or treat depression and other mood disorders.  Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are believed to help with mood disorders, though the method of interaction is not fully understood.  The theory is that they are anti-inflammatory, and they interact with mood molecules.  Clinical trials examining omega-3 therapy as a stand alone and as an add-on therapy support its use to help treat depression.

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