Vitamins play crucial roles in maintaining overall health by supporting various bodily functions, such as immune response, energy production, and bone health. Each vitamin has specific functions; for example, vitamin C is essential for collagen production and immune support, while vitamin D aids calcium absorption and bone strength. B vitamins are vital for energy metabolism, while vitamin A contributes to vision and skin health. Deficiencies in essential vitamins can lead to serious health issues. Consuming a balanced diet rich in fruits, vegetables, whole grains, and lean proteins helps ensure adequate vitamin intake for optimal function and health.