Micronutrients, which include vitamins and minerals, play a critical role in maintaining overall health. They support various bodily functions, from metabolism to immune responses. Vitamins like C and D are vital for skin health and bone density, while minerals like calcium and iron are essential for strong bones and oxygen transport, respectively. A deficiency in these micronutrients can lead to serious health issues, such as anemia or weakened immune function. Ensuring a well-rounded diet that contains a variety of micronutrients is crucial for optimal bodily functions and overall well-being.