Eating fish helps ward off heart disease

But whatever you choose, just don't fry it, the heart group warned.
Adults should strive for two 3.5-ounce servings of fatty fish each week. Oily fish is not the only source of omega-3, said Angelone, who was not involved in the AHA recommendations.

"Chia seeds, flaxseeds and walnuts are good sources of alpha linolenic acid (ALA), which is a precursor to EPA -- which is then converted to DHA," said Sonya Angelone, a registered dietitian and spokesperson for the Academy of Nutrition and Dietetics. Read more on WebMD