Question

which nutrient serves as a major source of energy?
fats
carbohydrates
vitamins

Explanation:

To determine the major energy - providing nutrient:

1. Recall the functions of each nutrient:

• Proteins are mainly for growth and repair.
• Fats are a long - term energy storage.
• Carbohydrates are the body's primary and major source of energy as they are broken down quickly to provide energy for daily activities.
• Vitamins have regulatory and protective roles, not energy - providing.

Answer:

carbohydrates