Nutrition: An Overview
Nutrition is defined as the process by which living organisms obtain and utilize food to provide energy, growth, and repair of tissues. It serves as the foundation for understanding the larger biological processes that occur in living systems. The significance of nutrition spans across all types of organisms—autotrophs, which create food using sunlight and inorganic materials, and heterotrophs, which rely on consuming other organisms. This section sets the stage for exploring different nutritional types, the human digestive system, and the importance of nutrition in overall health and development.