The nurse at a community clinic is teaching Harry about essential nutrients and their use by the body.Which nutrient provides the main source of energy for the body?

A) Fats
B) Proteins
C) Vitamins
D) Carbohydrates

Main Source of Energy

Generally refers to the primary fuels or resources that provide energy. For humans, this is often food, and for societies, it can be fossil fuels, nuclear power, or renewable sources like solar and wind.

Essential Nutrients

Substances that the body cannot synthesize in sufficient quantities and must be obtained through the diet, including vitamins, minerals, amino acids, and fatty acids.

Carbohydrates

Organic compounds, including sugars, starches, and fiber, that serve as a major energy source for the body.