Atkins Diet (Undated-AP) -- The Atkins diet has its most powerful support yet -- two studies in one of the nation's most distinguished medical journals. The reports show the high-protein, high-fat approach helps people lose weight faster than the standard low-fat diet. Studies in the New England Journal of Medicine also say Atkins-style diets can push down weight without raising cholesterol. People on high-fat, low-carb diets lost twice as much weight over six months as those on standard low-fat diets. But there's a catch. Just like people on standard diets, the Atkins-style dieters regained much of the weight after a year. One study was led by a researcher at the University of Pennsylvania School of Medicine. The other was led by a researcher at the Philadelphia Veterans Affairs Medical Center.