Vitamin A: Essential for Vision and Immune Health
Vitamin A is a fat-soluble vitamin that plays a crucial role in maintaining healthy vision, supporting the immune system, and promoting cell growth. It exists in two primary forms:
- Preformed Vitamin A (Retinol) – Found in animal-based foods like liver, dairy, and eggs.
- Provitamin A (Beta-Carotene) – Found in plant-based foods like carrots, sweet potatoes, and spinach, which the body converts into vitamin A.
Key benefits of vitamin A include:
- Vision Support: It is vital for the formation of rhodopsin, a protein that helps the eyes adjust to low light.
- Immune Function: Vitamin A supports the production of white blood cells, which help fight off infections.
- Skin Health: It promotes the growth of healthy skin cells and can help maintain a clear complexion.
A deficiency in vitamin A can lead to night blindness, a weakened immune response, and other health problems, while excess intake (particularly from supplements) can be toxic. A balanced diet with a mix of animal and plant-based sources ensures you get enough of this essential nutrient.