- Nutrients are essential compounds that provide energy and building blocks for the normal functioning of the human body. They include carbohydrates, proteins, fats, vitamins, minerals, and water.
- Essential nutrients cannot be synthesized by the body and must come from food, while nonessential nutrients can be synthesized if absent from food. Organic nutrients like carbohydrates, proteins, and lipids serve as necessary building blocks.
- Nutrients provide energy for vital processes and materials to assemble cellular and tissue components. A balanced intake of nutrients is needed to maintain good health.