Increasing your consumption of fish oils — omega-3 fatty acids or long-chain n-3 polyunsaturated fatty acids — decreases your risk of dying of a heart attack. Eating more fish or taking fish oil supplements is a safe, worthwhile investment for both men and women, whether or not you’ve ever experienced heart disease. However, women still capable of having children should limit their intake of fish with a high mercury content, such as shark, swordfish, king mackerel and tile fish, or fish containing traces of industrial pollutants, such as polychlorinated biphenyls (PCBs). Most states and the Food and Drug Administration (FDA) publish fish advisories and bans.
(Source: The Mayo Clinic, online at www.mayoclinic.com.)