A multivitamin is a dietary supplement that contains a combination of vitamins and minerals. These nutrients are essential for various bodily functions, including immune support, energy production, and overall health. Multivitamins are often taken to fill nutritional gaps in a person's diet, especially if they do not consume a wide variety of foods. Many people choose to take multivitamins to help maintain their health, particularly those with specific dietary restrictions or increased nutritional needs, such as pregnant women or elderly individuals. While multivitamins can be beneficial, it's important to consult a healthcare professional before starting any supplement regimen.