QUOTE : There are data suggesting that people with higher levels of arachidonic acid in their blood may end up at significantly higher risk of suicide and episodes of major depression.16 The top-five sources of arachidonic acid in the American diet are chicken, eggs, beef, pork, and fish, although chicken and eggs alone contribute more than the other top sources combined.17 Just a single egg’s worth of arachidonic acid a day may significantly raise arachidonic acid levels in the blood.18 Overall, omnivores appear to consume about nine times more arachidonic acid than those eating plant-based diets.19 The study showing improved moods and emotional states in those eating plant-based diets was a cross-sectional study, meaning it was a snapshot in time.