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How many calories are there in a single gram of fat?

  1. 4

  2. 7

  3. 9

  4. 12

The correct answer is: 9

A single gram of fat contains 9 calories. This is based on the energy content of macronutrients, where fats provide the highest caloric value compared to carbohydrates and proteins, which contain 4 calories per gram. Understanding this caloric value is important in nutrition, especially for those involved in esthetics and wellness, as fat plays a crucial role in body functions, hormone production, and absorption of fat-soluble vitamins. Recognizing the energy density of fat helps in creating balanced dietary plans and managing caloric intake effectively.