Correct option is A
Correct Answer: (A) Four
Explanation:
● Protein is one of the four essential nutrients that provide calories (energy) to the body. The other three are carbohydrates, fats, and alcohol.
● Proteins provide 4 calories per gram, similar to carbohydrates, while fats provide 9 calories per gram.
● Alcohol also provides energy at 7 calories per gram, but it is not considered an essential nutrient.
Information Booster:
● Functions of Protein:
- Builds and repairs body tissues, including muscles.
- Serves as a building block for enzymes and hormones.
- Supports immune function.
● Protein sources include meat, fish, eggs, beans, and dairy products.
● The recommended daily protein intake varies with age, gender, and activity level, generally around 0.8 grams per kilogram of body weight for adults.