A new study released in this month's Journal of the American Dietetic Association said tilapia has more omega-6 fatty acids than omega-3 fatty acids, and this could be harmful to people with heart problems.

That is no reason to stop eating the popular fish, scientists said in their open letter issued Thursday.

"Tilapia and catfish are examples of lower-fat fish that have fewer omega-3s than the oily fish listed above, but still provide more of these heart-healthy nutrients than hamburger, steak, chicken, pork or turkey," said the letter signed by a coalition of 16 researchers and cardiologists from the United States, Europe and Asia.

"Actually,