Cold bean curd skin won't get fat without oil. Cold bean curd skin will not get fat without oil, because oil is a food with high energy density, and it contains high fat content, and the energy density of fat is more than twice that of carbohydrates and protein, so foods with high fat content will increase calorie intake, which will lead to weight gain. As a low-calorie, low-fat, high-protein and high-fiber food, bean curd skin itself contains less energy and fat, even if it is not oiled, it will not lead to weight gain.