Whether you are just starting a New Year's diet or struggling to maintain a healthy weight, a provocative new study offers some timely guidance. It isn't so much what you eat, the study suggests, but how much you eat that counts when it comes to accumulating body fat…The findings suggest that it matters little whether a diet is high or low in fat, carbohydrates or protein, it's calories that build body fat. "That's a very important message," said Francisco Lopez-Jimenez, an obesity researcher at Mayo Clinic, Rochester, Minn., who wasn't involved with the study. "Weight gain depends primarily on excess calories, regardless of the composition of the meal."
Wall Street Journal, by Ron Winslow, 1/4/2012