FORT LAUDERDALE, Florida - The dietary establishment has long argued it's impossible, but a new study offers intriguing evidence for the idea that people on low-carbohydrate diets can actually eat more than those on standard lowfat plans and still lose weight. Perhaps no idea is more controversial in the diet world than the contention — long espoused by the late Dr. Robert Atkins — that people on low-carbohydrate diets can consume more calories without paying a price on the scales. Over the past year, several small studies have shown, to many experts' surprise, that the Atkins approach actually does work...