What are the six classes of nutrients?

The six classes of nutrients are essential for maintaining health and proper bodily functions, and they include carbohydrates, proteins, fats, vitamins, minerals, and water.

Carbohydrates provide the body with energy and are found in foods like grains, fruits, and vegetables. Proteins are crucial for building and repairing body tissues, as well as making enzymes and hormones, and are sourced from both animal and plant foods. Fats are another important energy source and are vital for absorbing certain vitamins and supporting cell growth.

Vitamins and minerals are necessary for various biochemical processes and play roles in immune function, energy production, and bone health. Water, while often overlooked as a nutrient, is essential for hydration, temperature regulation, and serving as a solvent for many biochemical reactions in the body.

Other options proposed either focus on incomplete or incorrect categorizations of nutrients, omitting essential classes such as water and vitamins, or include non-nutrient components, which are not counted among the six recognized categories.