it's a polly unsal rated fatty acid in nuts, plants, fish, fatty fish like salmon, tuna. really good for you. the question now is though, do you need it in supplements as well? are we getting enough in the fish we eat? we say to pregnant women, watch out, two servings of fish a week, according to the american heart association but not more because of the mercury with fish. all three of you take supplements. i take them as well. the goal is to decrease inflammation in the body because studies show that -- this study showed it decreased the amount of inflammation, your tendency to form clots, improves blood flow, decreases risk of having an arrhythmia where the heart beats irregularly. it helps you think more clearly. great stuff. that's before this study came out. what does this study add? it's a prospective trial like david and i like where they followed 360 people who had a heart attack. they found the actual heart muscle improved after they gave a high dose of this supplement. >> even if you haven't had a heart attack, we all should take this? i wouldn't take four grams