Vitamin A - Wikipedia
User-generated article about the essential human nutrient vitamin A, its discovery, recommended daily intake, food sources, deficiency, and overdosage effects.
vitamin: Definition from Answers.com
More about Vitamins: Purpose Precautions Preparation Aftercare Risks Resources Vitamins Definition Vitamins are organic components in food that are
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Vitamin - Wikipedia, the free encyclopedia
Fruits and vegetables are often a good source of vitamins. ... A compound is called a vitamin when it cannot be synthesized in sufficient quantities by an organism, and ...
Vitamin Chart
Your body needs vitamins to work properly. They boost the immune system, are essential for normal growth and development, and help cells and organs do their jobs.
Vitamins
How vital are vitamins? Find out in this article for kids. ... Vitamin A helps you see in color, too, from the brightest yellow to the darkest purple. ...
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