Understanding Calories

Calories are a measure of energy from food, with fats, carbohydrates, and proteins providing this energy. Fats offer 9 calories per gram, while carbohydrates and proteins provide 4 calories per gram. A balanced intake of these macronutrients is recommended. Caloric needs vary based on metabolism and physical activity, with average daily requirements being 2,400 calories for men and 2,000 for women. Maintaining caloric balance is crucial for weight management.

What is the primary function of calories in the body?

• To measure weight

• To provide energy

• To build muscle

• To store fat

Which macronutrient provides the most calories per gram?

• Carbohydrates

• Vitamins

• Proteins

• Fats

What does 'calories in equals calories out' refer to?

• Maintaining weight

• Gaining weight

• Losing weight

• Increasing metabolism

What are the two main factors that determine 'calories out'?

• Diet and sleep

• Metabolism and physical activity

• Age and gender

• Height and weight

How many calories does the average female need per day?

• 2,400 calories

• 3,000 calories

• 2,000 calories

• 1,500 calories