How many kilocalories does alcohol yield when metabolized in the body?

When metabolized in the body, alcohol yields 7 kilocalories per gram. This value is significant in nutritional science as it indicates that alcohol provides a substantial amount of energy, although it is not considered a macronutrient in the traditional sense like carbohydrates, proteins, and fats.

Unlike carbohydrates and proteins, which each provide 4 kilocalories per gram, and fats, which offer 9 kilocalories per gram, alcohol stands out with its unique caloric contribution. The metabolic pathway for alcohol is distinct and involves its conversion in the liver. This process can contribute to the overall caloric intake and should be carefully considered in nutritional planning and dietary assessments.

Understanding that alcohol provides 7 kilocalories per gram highlights why it can contribute significantly to energy intake, particularly in social and cultural contexts where alcohol consumption is common. Additionally, the energy derived from alcohol does not provide essential nutrients, unlike other macronutrients, which can lead to nutritional imbalances if not consumed mindfully.