Which nutrient is most critical for wound healing?

Which nutrient is most critical for wound healing?

• A. Vitamin D
• B. Carbohydrates
• C. Fats
• D. Protein

Answer: (D)

Protein provides the amino acids that are the building blocks for tissue repair and collagen formation, which are essential during wound healing. The proliferative phase relies on fibroblasts to synthesize collagen and other matrix components to close and strengthen the wound, and without enough amino acids these processes slow or stall. Protein also supports immune function, helping the body fight infection that can complicate healing. Other nutrients like carbohydrates supply energy and fats provide calories and essential fatty acids, and vitamin D plays roles in immune regulation, but none are as directly foundational to rebuilding damaged tissue as protein. When protein intake is adequate, wound tensile strength improves and healing progresses more reliably.

Protein provides the amino acids that are the building blocks for tissue repair and collagen formation, which are essential during wound healing. The proliferative phase relies on fibroblasts to synthesize collagen and other matrix components to close and strengthen the wound, and without enough amino acids these processes slow or stall. Protein also supports immune function, helping the body fight infection that can complicate healing. Other nutrients like carbohydrates supply energy and fats provide calories and essential fatty acids, and vitamin D plays roles in immune regulation, but none are as directly foundational to rebuilding damaged tissue as protein. When protein intake is adequate, wound tensile strength improves and healing progresses more reliably.