The Journal of Clinical Psychiatry reported on a recent study linking military suicides to low DHA (a type of omega 3 fatty acids) levels in the blood. Omega 3 fatty acids are essential for healthy brain function and balanced moods. I routinely recommend increasing omega-3 fatty acids to help decrease depression and anxiety. DHA is an essential fatty acid which means our bodies cannot produce it on its own—you need to consume it. You can find DHA in seafood (especially coldwater fish), algae and fortified eggs. The healthiest fish to consume (lowest in mercury and highest in omega 3 fatty acids) are wild salmon and sardines.  How about vegetarian sources? Another omega-3 fatty acid known as alpha linolenic acid, found in flaxseeds, flaxseed oil, hemp seeds and chia seeds, turn into DHA in our bodies. Therefore, our bodies must convert alpha-linolenic acid to DHA- not everyone, however, does this conversion efficiently.