Micronutrients, such as vitamins and minerals, play a crucial role in a healthy diet by supporting various bodily functions. They are essential for immune function, energy production, and cellular repair. Unlike macronutrients, micronutrients are required in smaller amounts but are vital for growth, development, and overall well-being. A deficiency in these nutrients can lead to various health issues, including anemia and weakened immunity. Including a diverse range of foods, especially fruits, vegetables, and whole grains, helps ensure adequate micronutrient intake for optimal health.