This will ultimately depend on which type of fish you're including in your diet. Some of the best sources include sardines, mackerel and various types of salmon. Per the National Institutes of Health (NIH - USA), the following are estimated amounts: 3oz. cooked, wild Atlantic salmon: DHA 1200mg; EPA 350mg 3oz. cooked, Atlantic mackerel: DHA 590mg; EPA 430mg 3oz. canned sardines: DHA 740m; EPA 450mg