The main source of vitamin A is animal products, particularly liver, which is exceptionally rich in preformed vitamin A (retinol). Other good sources include fish oils, dairy products like milk and cheese, and eggs. Additionally, vitamin A can be obtained from plant-based foods in the form of provitamin A carotenoids, found in fruits and vegetables, such as carrots, sweet potatoes, spinach, and apricots. The body converts these carotenoids into active vitamin A, making them important for maintaining health and well-being, particularly for vision and immune function.