The dish on fish
Benefits outweigh risks, according to two recent reviews.
We know, we know: We're supposed to eat fish. Several guidelines say a healthful diet should include two servings (usually defined as 3 ounces) per week. Fish contains eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), two long-chain omega-3 fats that aren't found in appreciable amounts in any other sort of readily available food. Those omega-3 fats may have all kinds of benefits, but so far the best evidence is that they're protective against fatal cardiac arrhythmias and heart attacks. In addition, DHA may be important to early brain development and to healthy pregnancies.