Which micronutrient is important for wound healing and immune function?

Zinc plays a crucial role in wound healing and immune function due to its involvement in numerous biological processes. It is essential for the synthesis of proteins and DNA, which are necessary for cell division and growth. This is particularly important during the wound healing process, as new tissues need to be created to repair the damaged area. Additionally, zinc is vital for the function and development of immune cells, such as T-lymphocytes, helping to strengthen the immune response and fight infections. Moreover, it acts as an antioxidant, reducing oxidative stress which can hinder healing.

In contrast, while calcium is important for bone health and muscle function, it does not have a direct role in wound healing or immune response. Iron is essential for hemoglobin formation and oxygen transport in the blood but has minimal direct involvement in tissue repair or immune function. Iodine is important for thyroid function and metabolic regulation but does not specifically contribute to the processes crucial for wound healing or immune health. Therefore, zinc is recognized as the key micronutrient for these specific health functions.