Vitamins are micronutrients that play a vital role in maintaining health. Each vitamin has unique functions, and deficiencies can lead to serious health issues. For instance, Vitamin C is essential for collagen production and immune function, while Vitamin D is crucial for bone health and calcium absorption. Nurses should assess patients' dietary intake and consider the need for vitamin supplementation, especially in populations at risk for deficiencies, such as the elderly or those with chronic illnesses. Regular monitoring and education on a balanced diet rich in fruits, vegetables, and fortified foods can help ensure adequate vitamin intake.