this is relatively modest doses. the average american takes in about 150 milligrams a day. we know we need to go up, but you don't necessarily need to super dose like our tendency is when anything is good for us. >> so 400. is there a way to put that into the context of food? in this study they were talking about eating fish as opposed to supplements. >> 400 milligrams is on average two servings of fish a week. the american heart association is right on track with their recommendations for eating fish at least twice a week. >> do you think some of this is because if you eat fish you are not eating, you know, other things that could be problematic, red meat and things like that? >> well, it's interesting. they looked at confounding variables, so other explanations. it really does seem to be a benefit of omega-3 fatty acids. by looking specifically at the