Which type of calories do alcohols contribute in comparison to proteins and carbohydrates?

Alcohols contribute 7 calories per gram, which distinguishes them from proteins and carbohydrates. Proteins and carbohydrates each provide about 4 calories per gram, while fats provide 9 calories per gram. The caloric density of alcohol is significant, as it typically comes without essential nutrients, leading to empty-calorie consumption. This means that while alcohol can contribute to overall caloric intake, it does not provide the essential vitamins and minerals that are important for health, unlike proteins and carbohydrates, which serve critical physiological functions. Understanding this difference helps in making informed dietary choices, especially in calorie management and considering the nutritional quality of foods and beverages consumed.