Vitamin A – The Glow-in-the-dark Vitamin
by: David Leonhardt
The ancient Egyptians had a cure for "night blindness".
They fed the patient lots and lots of liver. Perhaps they thought
they were appeasing the Gods of sight. In 1930, the first fat-soluble
vitamin was discovered - vitamin A - which, it turns out, does
indeed appease the Gods of sight.
Vitamin A is best known for improving eyesight,
particularly at night, which is one of two reasons we call it
the glow-in-the-dark vitamin. But the eyes are not the only part
of your body grateful for your generous consumption of vitamin
A.
Your skin also benefits. And your hair. And mucous membranes.
And nails. In fact, almost any surface lining your body can find.
Your immune system benefits, too, giving you added resources
to ward off infections. Bones and teeth are strengthened with
proper amounts of vitamin A, and even the risk of some cancers
can be reduced with vitamin A.
And there are more confirmed and suspected benefits.
The other reason we call Vitamin A the glow-in-the-dark vitamin
is because it is best known as the bright orange color in so many
foods we enjoy. Like pumpkins, pumpkin pie and my favorite: pumpkin
cheesecake ( see my recipe at http://www.thehappyguy.com/pumpkin-cheesecake-recipe.html
). And, of course, carrots, squash, peaches, apricots, cantaloupe,
mangoes, sweet potatoes and the rest of the orange-spangled veggie
gang.
But again, vitamin A is much more than meets the eye, because
it is not actually vitamin A that turns the fruit and vegetables
orange, but a precursor to vitamin A called beta carotene. Beta
carotene does not become vitamin A until your body processes it.
And vitamin A is just as likely, if not more so, to come from
protein sources such as most dairy products, egg yolks and some
fish. And the queen of all vitamin A sources is liver, that ancient
Egyptian God of sight. Calves liver. Chicken liver. Pork liver.
Any liver you can sink your teeth into.
The vitamin A in protein sources is real vitamin A, no processing
required.
Other great sources of vitamin A are dark green vegetables, such
as Swiss chard, broccoli, spinach and beet greens.
As important as it is to glow with vitamin A, don't glow too
brightly. An overdose can be harmful to bones and skin, causing
weakness and brittleness, even leading to fatigue and vomiting.
It is advisable not to take a vitamin A supplement except under
the supervision of a physician. In most cases, it is much better
to take a liquid multivitamin such as Essential Nectar in recommended
daily doses. There is very little chance of getting an overdose
that way.
Also, increase your intake of beta carotene sources to avoid
an overdose. Whereas your body absorbs all the vitamin A it takes
in directly, it converts only the beta carotene it needs (talk
about customization!).
So get glowing and get the vitamin A you need.
About The Author
David Leonhardt runs The Liquid Vitamin Supplements Store:
http://www.vitamin-supplements-store.net
Learn more about vitamin A:
http://www.vitamin-supplements-store.net/vitamins/vitamin-a.html
Or read up on other nutrition information:
http://www.vitamin-supplements-store.net/nutrition-information.html
Or read up on other nutrients:
http://www.vitamin-supplements-store.net/nutritional-supplements.html
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