In general, which macronutrient is considered the most satiating (most likely to promote fullness) per calorie?

• A. Carbohydrate
• B. Fat
• C. Alcohol
• D. Protein

Answer: (D)

Verified step by step guidance

1. Understand the concept of satiety, which refers to the feeling of fullness and the suppression of hunger after eating.
2. Recognize that macronutrients include carbohydrates, fats, proteins, and alcohol, each providing different amounts of energy per gram and affecting satiety differently.
3. Recall that protein is generally considered the most satiating macronutrient per calorie because it influences hormones that regulate hunger and fullness more strongly than carbohydrates or fats.
4. Note that fat is energy-dense but less effective at promoting fullness per calorie, while carbohydrates vary in their satiating effects depending on type and fiber content.
5. Understand that alcohol provides calories but does not promote satiety effectively, often leading to increased appetite rather than fullness.