Scientists have found that people whose diets are highest in carbohydrates actually eat fewer calories per day and are less likely to be obese than people who eat diets with higher levels of fat and protein. Researchers at the Agricultural Research Service (ARS), the USDA's chief scientific research agency, studied data analysis of carbohydrate intakes from the USDA's Continuing Survey of Food Intakes by Individuals for the years 1994-1996.