Which nutrient is essential for tissue repair?

Correct option is D

Proteins are the primary nutrients required for tissue repair and growth. They help in cell regeneration, muscle repair, and healing wounds. Amino acids, the building blocks of proteins, are essential for maintaining body structures and recovery from injuries.
Explanation of Each Option:
· Vitamin: Important for metabolism and immune function, but not the main component of tissue repair.
· Carbohydrate: Provides energy, but does not play a direct role in tissue repair.
· Fat: Needed for energy storage and cell membrane structure, but not for tissue repair.
· Protein: Correct answer; necessary for muscle recovery, wound healing, and cell regeneration.