Human Metabolism

Human metabolism is the complex process by which our bodies convert food into energy and building blocks needed for growth, repair, and daily functions. When we eat, our bodies break down carbohydrates, fats, and proteins into smaller molecules. These molecules are then used to produce energy, primarily as a molecule called ATP, which powers cellular activities. Metabolism also involves processes to store excess nutrients for later use and to eliminate waste products. It is regulated by hormones and varies depending on activity levels, age, and health, ensuring we have the energy and materials necessary to sustain life.