Six Essential Nutrients
What Are the Six Classes of Nutrients Essential for Human Health?

Discover the six classes of nutrients—carbohydrates, proteins, fats, vitamins, minerals, and water—and their vital roles in maintaining health.

Three Classes of Food
What Are the Three Classes of Food and Their Benefits?

Learn about the three classes of food—carbohydrates, proteins, and fats—and their vital roles in energy, growth, and cell function.