Enlarge Image Counting calories. Our bodies may take more energy to process the carbohydrates in garbanzo beans than in cereal, which suggests all carbohydrate calories are not alike. Credit: iStockphoto/Thinkstock BOSTON—When it comes to weight loss, a calorie is a calorie is a calorie. That's been the mantra of nutritionists, dietitians, and food regulators in the United States and Europe for more than a century. But when it comes to comparing raw food with cooked food, or beans with breakfast cereals, that thinking may be incorrect. That was the consensus of a panel of researchers who listed the many...