Vitamin A is an essential nutrient that plays a crucial role in maintaining healthy vision, immune function, and skin health. It is found in two primary forms: preformed vitamin A (retinol) from animal sources and provitamin A carotenoids from plant sources, such as carrots and spinach. A deficiency in vitamin A can lead to serious health issues, including night blindness and an increased risk of infections. To ensure adequate intake, it is important to consume a balanced diet rich in both animal and plant-based foods that provide this vital vitamin.