Health // Medicines

Vitamins in human life

cold shower for the Americans was the article of medical obozrevatelnitsy "New York Times" Jane Brody and Dr. Stampfer, a professor at Harvard Medical School.The main thing that bothered the authors - is that the recommendations are based on reception of vitamins to "negligible evidence of their use", which is rarely true 100%.

Furthermore, the amount of vitamins to be taken by adults and children, depend on many factors, including age, sex and state of health.The matter is complicated by the fact that part of the trace elements are able to interact with each other in our bodies, and not always for the benefit of it.

For example, vitamin C, which is a recognized antioxidant, saving cells from damage in the presence of iron is converted into oxidant with the opposite effect.All this, according to Brody, makes us "consumers, volunteers poorly controlled experiment."

daily dosage of beta-carotene is not defined, because it is included in the dosage of vitamin A. However, at high doses it is able to caus

e yellowing of the skin.Some experts are inclined to suspect him of provoking a number of cancers.

Vitamin C is usually recommended at a dose of 60 mg per day.However, above this threshold begins to interact with certain cancer drugs.It interferes in the diagnosis of diseases of the colon.

Vitamin E - a daily dose of 8 mg for women and 10 for men.High-dose 50 times higher than standard, can cause bleeding in people taking drugs for "thinning" the blood.

Vitamin B6 - a daily dose of 1.6 mg for women, 2 mg for men.In excess of 500 times the dose capable of damaging the nerves.

Calcium, if taken more than 1 gram per day, causing constipation and kidney dysfunction.

iron in a daily dose of 15 mg for women and 10 mg for men increases the risk of cardiovascular diseases.

Zinc if it has more than 12 mg for women and 10 mg for men a day, irritates the intestine and undermine the immune system.