Final answer:
Alcohol is referred to as empty calories because it lacks nutritional value and contributes to caloric intake.
Step-by-step explanation:
Alcohol is referred to as empty calories because it lacks nutritional value and contributes to caloric intake.
While alcohol does contain calories, it does not provide essential nutrients like proteins, carbohydrates, and fats, which are needed for proper functioning of the body.
For example, a standard alcoholic drink like beer can contain around 150 calories, but it does not provide any vitamins or minerals that are essential for good health.