Oranges may be the closest thing to a fruit that contains vitamin D. When you stumble upon fruits that contain vitamin D, bananas are another better option. That's because they're a great source of magnesium, which activates vitamin D in the body. In addition, it is suggested that a real amount of magnesium is needed to obtain the optimal benefits of vitamin D.
With adequate exposure to the sun and a healthy diet comprised of foods that contain vitamin D, supplements may not be necessary. Maintaining a healthy diet requires consuming adequate amounts of carbohydrates, proteins, fats, vitamins, minerals and fiber.