Omega-3 fatty acids are polyunsaturated fatty acids that are essential for good health. They play an important role in brain function and normal growth and development. Since our bodies cannot produce omega-3s, they must be provided by our diet. There are two major kinds of omega-3 fatty acids found in food: The first kind, Alpha-linolenic acid (ALA), are short-chain omega-3 fatty acids that are found in some vegetable oils,(soybean, rapeseed (canola), flaxseed) and in walnuts, brussels sprouts, kale, spinach, and salad greens. The second kind, EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) are long-chain omega-3 fatty acids that are found in fatty fish like mackerel, lake trout, herring, sardines, albacore tuna, and salmon. Research indicates that only 5% of ALA converts to EPA, and less than 1% converts to DHA. ALA does contain many health-promoting benefits, but unlike EPA and DHA, one would need to consume a lot more of ALA to realize the same health benefits derived from EPA and DHA.