Energy is delivered to the body through foods. Any energy consumed (in the form of carbohydrates, protein or fat) and not used for metabolism, growth or physical activity will be stored as body fat.
There are many factors that dictate how much energy a person needs, but in simple terms the more the body moves, the greater the amount of energy will be needed.
Carbohydrates are the body's main source of energy. The fruit, vegetables, dairy, and grain food groups all contain carbohydrates.
The nutrients that provide energy are commonly referred to as macronutrients (carbohydrates, lipids, and proteins).
Lipids are a concentrated source of energy and provide almost twice the amount of energy than that supplied by proteins and carbohydrates.
