Vitamin a Overview

Encyclopedia: Vitamin a

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Vitamin A is a essential human nutrient. Vitamin A actually refers to a family of similarly shaped molecules: the retinoids. Its important part is the retinyl group, which can be found in several forms. In foods of animal origin, the major form of vitamin A is an ester, primarily retinyl palmitate, which is converted to an alcohol in the small intestine. Vitamin A can also exist as an aldehyde ,...


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MedlinePlus: Vitamin A

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Vitamin A is a fat-soluble vitamin found in milk, eggs, and leafy vegetables. Humans need Vitamin A to help maintain good vision, and to promote bone, skin and teeth growth....

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Question and Answer

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Vitamin A?
are there any foods or vegetables out there that have a very very high source...

You should'd have to worry too much about vitamin A if you eat vegetables at all. Pumpkin and carrots are probably the best sources as are dark green leafy ...

Asked by Ms* Shae* - 8 months ago

What is a good vitamin regimen for a healthy woman in her late 20's?
With all the different reports of which vitamins and supplements that are good for promoting...

i know your doctor said multi vites suck but those are the ones to take. if you take many different vitamins you may be getting too much of a...

Asked by grateful living - 14 months ago

Forum Search

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  • Vitamins Liquid Life Vitamins - 5 replies

    Has anyone taken the liquid life complete vitamins? I am looking for a good liquid vitamin or a vitamin that has good absorbtion.

    Feb 05, 2007

  • Vitamins Usana Vitamin Supplements-opinions? Advice? - 16 replies

    are usana vitamin supplements worth the hefty price or will I get the same results using regular Yes, how true! Multi-vitamins at the store are just as good, if not sometimes better...

    Jun 24, 2005

  • Vitamin D2 Is As Effective As Vitamin D3 - 2 replies

    There are rumors that vitamin D2 (plant derived) is less effective than vitamin D3 (animal derived ). Latest study about this issue shows that Vitamin D2 is as effective as vitamin D3: Read here: http

    Sep 16, 2008

Question & Answer

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  • Do you get enough vitamin A?

    Im pretty sure I do, I take multi vitamin capsules every day. Thanks for the great question....

  • What's your favorite vitamin and why?

    I have a problem or my family seems to have a problem, assimilating the B vitamins. So I ma very conscious of my intake and things to help them stay put lol! And I also...


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