Which nutrient is vital for the development and repair of body tissues?

Proteins play a crucial role in the development and repair of body tissues, making them the primary building blocks for muscles, organs, skin, and other structures within the body. When we consume protein, the body breaks it down into amino acids, which are then used to synthesize new proteins that contribute to tissue growth and repair. This process is particularly important after injury, surgery, or intense physical activity, where the demand for tissue repair increases.

While carbohydrates provide energy and fats serve essential functions such as hormone production and providing energy reserves, they do not play the direct role in tissue building and repair that proteins do. Water, although vital for many physiological processes, is not a nutrient that contributes to the structure of tissues but rather serves to maintain hydration and support various metabolic reactions.