/*** **/

Why we need Carotene

After Vitamin A was first discovered, researchers believed that the only way to get your A’s was by eating animal foods such as eggs or liver that naturally contain retinoids, or preformed Vitamin A. Your body can use this Vitamin A as is just as soon as you eat it.
In 1928, researchers discovered the other way to get your A’s: by eating plant foods that contain carotenes—the orange, red, and yellow substances that give plant foods their colors. The most abundant of the carotenes in plant foods is beta carotene. Your body easily converts beta carotene to Vitamin A in your small intestine, where special enzymes split one molecule of beta carotene in half to make two molecules of Vitamin A.
carotineIf you don’t happen to need any Vitamin A just then, you don’t convert the beta carotene. Instead, a lot of it circulates in your blood and enters into your cells; the rest gets stored in your fatty tissues. Whenever you need some extra A’s, your liver quickly converts the stored beta carotene.
Carotenes are just one small group of plant substances in the much larger carotenoid family.
Why is it better to convert your Vitamin A from the carotenes in plant foods rather than getting them straight from animal foods or supplements? There are some very good reasons.
About 40 percent of the carotenes you eat are converted to Vitamin A in your liver and small intestine as you need it. The rest act as powerful antioxidants. Beta carotene is especially good at quenching singlet oxygen.
Large doses of supplemental Vitamin A can be toxic—and some people show overdose symptoms even at lower doses. Your body converts carotenes to Vitamin A only as needed, however, so it’s almost impossible to overdose.
Also, beta carotene is nontoxic—even if you store so much in your fatty tissues that you turn yellow, it’s harmless.
The health benefits of fruits and vegetables are well-known. Carotenes are found in almost every fruit and vegetable. Five servings a day will give you all the Vitamin A you need, along with plenty of other vitamins, minerals, antioxidants, and fiber.
What you won’t get are calories and the cholesterol found in animal sources of preformed Vitamin A such as beef.
And al last carotene is even better antioxidant—it may be ten times as effective for mopping up free radicals.

Reblog this post [with Zemanta]

Over the counter medications for common health problems

Fabulous Power of Vitamins and Minerals

Comments

Got something to say?

You must be logged in to post a comment.

/***
  • Vitamins for hair growth

  • Minerals benefits

    Subscribe to RSS headline updates from:
    Powered by FeedBurner

  • Vitamins deficiency symptoms

    Subscribe to RSS headline updates from:
    Powered by FeedBurner

  • ***/