"theperksofbeingavegan:  ""The omega-3 fats in walnuts, which affect levels of the mood-altering brain chemical serotonin, make them useful for dealing with depression. They also contain melatonin, which aids the body's natural sleep patterns so they may help deal with insomnia.""  Hamlyn. 2007. 100 Health Boosting Foods. Octopus Publishing Group: London.  Can raise Histamine levels in the body so I eat a few at a time but they are one of my sources of Omega 3  The Reluctant Raw Foodist"
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