Artificial trans fats — a major contributor to heart disease in the United States — have already been substantially reduced in foods. But they still lurk in many popular products, like frostings, microwave popcorn, packaged pies, frozen pizzas, margarines and coffee creamers. Banning them completely could prevent 20,000 heart attacks and 7,000 deaths from heart disease each year, the F.D.A. said. read the full article here.