Which dietary component supports wound healing by providing amino acids for tissue repair?

• A. Adequate protein intake.
• B. Vitamin D only.
• C. Low-fat diet.
• D. Iron supplements alone.

Answer: (A)

Wound healing relies on building new tissue, which uses amino acids supplied by dietary protein. Adequate protein intake ensures a steady supply of essential amino acids for collagen synthesis, cell replication, and immune defense, all crucial for tissue repair. Without enough protein, the body can’t efficiently repair damaged tissue, even if other nutrients are present.

Vitamin D supports bone health and immune function but does not provide amino acids for tissue repair. A low-fat diet by itself doesn’t guarantee enough protein or calories for healing. Iron supplements aid oxygen delivery but don’t supply the amino acids needed for building new tissue. In healing, the building blocks come from protein, making adequate protein intake the best choice.