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| How to Choose Vitamin Supplements and its Dosage | Better to choose a multivitamin supplement rather than a high dose of any single vitamin. Make sure that it contains at least 200 micrograms of foliate (or 400 micrograms for women who are or may become pregnant).
Be aware of the supplements that contain just one or two specific vitamins or minerals unless your doctor or state-registered dietitian has advised you to. This is because vitamins and minerals work in harmony and an excessive amount of just one can impair the absorption or effectiveness of others. Correct dosage is really vital. Don’t risk your health thinking that the more vitamins you take, the healthy you will be. Beware of a risk of overdosing. Supplements sometimes contain over ten times the level of vitamins that we need a day. For example, fat-soluble vitamins have capability to built up in the body, so if your take the high amount of them, it can be dangerous. Taking too many water-soluble vitamins is less harmful because the body can get rid of these easily when you go to the toilet.
High doses of vitamins over a long period of time can lead to severe allergy of side effects. Scientists don't know what the risks might be for all vitamins. Some vitamins are proved to bear a risk.
The lack of vitamin A leads to increased risk of broken bones, which may be permanent.
Vitamin B6 - loss of feeling in the arms or legs called peripheral neuropathy, which is usually, though not always, reversible when intake is reduced.
The lack of vitamin C may lead to diarrhea, stomach pains and wind, which is reversible when intake is reduced.
The high doses of antioxidant vitamins A, C and E may increase the risk of cancer.
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