ivalent of about 500 mg per day of combined EPA and DHA. (DHA and EPA are present in fatty fish, generally in a 2:1 ratio; fish oil, on the other hand, typically has a DHA/EPA ratio of 2:3 or lower.) Significantly, the new paper does not focus on alpha-linolenic acid (ALA), which is found in flaxseed and to a lesser extent in canola oil, olive oil, walnuts, and other nuts, as well as trace amounts