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Vitamin A

Vitamin A is vitally important for healthy eyes. Processed by the retina, vitamin A is largely responsible for keen color vision and the ability to see in dim lighting.

What Vitamin A Does For The Body

Vitamin A is vitally important for healthy eyes. Processed by the retina, vitamin A is largely responsible for keen color vision and the ability to see in dim lighting.

Aside from helping you read in the dark, carotenoids also have antioxidant properties and work to protect cells from harmful free radicals that cause cancer, chronic diseases and wrinkled skin.

What happens if you don't have enough vitamin A: A deficit of vitamin A can increase the risk of infectious diseases caused by free radicals (like cancer). Individuals with too little vitamin A may also notice problems with their vision.

What happens if you have too much: Extremely large doses of vitamin A can hurt liver function and reduce bone density, but in order to experience these harmful effects, a person would have to ingest an immense amount of the vitamin - about 100 times the recommended amount.

A surfeit of carotenoids—carrots, pumpkins, and sweet potatoes—can temporarily turn the skin a shade of yellow or orange. When taken in supplement form, 3,000 mcg of vitamin A is the most that should be taken per day.

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