Are Mega-Doses Of Vitamins Safe

Friday, 7 August 2009

In today's health-conscious society
much attention has been paid to vitamin supplementation and the role it plays in total body health. In addition to promoting optimum wellness
vitamin supplements are taken for reasons such as protecting the heart
reducing the risk of cancer
boosting the immune
system
relieving the symptoms of PMS
alleviating depression and anxiety
improving the memory
and even weight loss.

There have been some publicized theories that advocate the use of extremely high doses
or mega-doses
of certain vitamins. Care should be taken when considering this kind of supplementation. While some vitamins are safe in large doses
others can be harmful. Here are the most commonly used
vitamins and the safest maximum doses for each:

Vitamin A - Vitamin A is a fat-soluble compound that is crucial for healthy vision
cell growth
and immune system function. Vitamin A should not be taken in excess of 10
0
IU which is twice the daily recommended allowance for adults.

Vitamin B6 - Vitamin B6 is a water-soluble vitamin that is required for protein metabolism
the delivery of oxygen to cells
and the regulation of blood glucose. Excessive Vitamin B6 can cause debilitating and dangerous nerve damage. Do not exceed 100 mg of Vitamin B6 per day.

Vitamin B12 - Vitamin B12 is essential to healthy red blood cells and nerve cells in the body. Vitamin B12 also plays a vital role in the creation of human DNA. Although this compound is well-tolerated and has a low level of toxicity
it is recommended that you do not exceed 3
0
mcg per day.

Folic Acid - Folic acid contributes to the development of DNA
and is also needed for the metabolism of important amino acids. It is especially crucial for pregnant women. Folic acid has a low toxicity level
however the recommended maximum dose for adults is 1
0
mcg.

Vitamin C - Vitamin C is necessary for the production of collagen
growth and repair of the body's tissues
and a healthy immune system. However
too much Vitamin C can cause harmful oxidation in the body. No more than 2000 mg per day should be consumed.

Vitamin D - Vitamin D is essential for normal levels of phosphorus and calcium in the blood. Vitamin D is an important contributor to strong bones and teeth. Excessive Vitamin D intake (more than 10
0
IU) can lead to bone pain
nausea
vomiting
and even kidney stones.

Vitamin E - Vitamin E is an antioxidant that helps protect the body against free radicals. However taking more than 1
0
mg can cause heart problems and excessive bleeding.

Talk to your doctor to learn more about the safe dosage levels of vitamin compounds. It’s not always a good idea to buy into the latest health fads
or to believe the sales copy you read on the product bottle.

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