What is a "nutrient"?

A nutrient is a substance that provides nourishment essential for the growth, maintenance, and repair of the body. Nutrients include carbohydrates, proteins, fats, vitamins, minerals, and water, all of which play vital roles in various physiological processes. Carbohydrates serve as the body's primary source of energy, proteins are essential for building and repairing tissues, fats provide energy and support cell function, vitamins and minerals facilitate numerous metabolic functions, and water is necessary for hydration and the transportation of nutrients throughout the body. Consuming a balanced diet rich in nutrients is crucial for overall health and well-being.