Vitamin A is an umbrella term for retinoids, which are biologically active compounds found in animals and plants. There are two different types of vitamin A: preformed and pro-vitamin A. Preformed vitamin A can be found in meat, fish, poultry and dairy. Pro-vitamin A can be found in plant-based foods like fruits and veggies. Once eaten, it can be converted by the human body into usable retinoids. (via Dr. Weil)
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Vitamin A helps to form and maintain healthy skin, immune system, teeth, skeletal, soft tissue and mucus membrane. It’s also known to produce the pigments in the retina of your eye. Be sure to eat more vitamin A if you want better vision, especially in low lighting. The best sources to find this vitamin are eggs, meat, milk, cheese, cream, liver, kidney, cod and halibut fish-oil. (via National Library of Medicine)
People take vitamin A for a variety of reasons. It is most often used to treat vitamin A deficiency. Early symptoms of a deficiency is night blindness, and if left unchecked you can go completely blind. When you don’t have enough vitamin A in your body, your immune system stops working properly and you can become more likely to catch an infectious disease like measles or pneumonia. It is also used to treat acne, wrinkles, dry eyes and a specific type of leukemia. (via Dr. Weil)
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