NEW YORK - FEBRUARY 08:  Pizza and pastries are displayed in a window February 8, 2006 in New York City.  A new US government study on nutrition has found that contrary to popular opinion a low fat diet does not appear to reduce the risk of cancer or heart diseases. The $415 million study involved nearly 49,000 women aged between 50 and 79 who were followed for a period of eight years. In the end, those on a low-fat diet had the same rates of breast cancer, colon cancer, heart attacks and strokes as those who ate whatever they liked.  (Photo by Spencer Platt/Getty Images)