Eat seafood the healthy way

Higher levels of sodium and cholesterol in some "fish without fins" raise special health concerns for older men.

Advice about healthy nutrition always seems to end with the refrain "and try to eat fish twice a week." But taste preferences, cost, and proper preparation present barriers. "If you like fish and you enjoy it, trying to get it once or twice a week is a good thing, but it may not be feasible," says Dr. Helen Delichatsios, an assistant professor of medicine at Harvard Medical School.