A nurse is reinforcing teaching with a client who has an open leg wound and is experiencing difficulty healing. The nurse should encourage the client to increase which of the following nutrients in his diet?

Protein is essential for wound healing as it plays a crucial role in tissue repair and regeneration. It provides the building blocks for new tissue formation and helps in the synthesis of collagen, which is necessary for wound healing. Adequate protein intake promotes wound healing by supporting the growth of new cells, enhancing immune function, and aiding in the formation of new blood vessels. Calcium is important for bone health but does not directly impact wound healing. However, a balanced diet that includes sources of calcium is generally recommended for overall health. Vitamin D plays a role in bone health and has some influence on immune function and wound healing. However, the primary focus in this scenario should be on protein intake. Fats, specifically essential fatty acids, are necessary for overall health and immune function. However, increasing fats in the diet may not directly impact wound healing. It is important to consume a balanced diet that includes healthy fats, but the emphasis for wound healing is on protein intake.