2010年1月24日星期日

Excessive fluoride intake will increase the fracture

Fluoride can prevent tooth decay, found in many foods, beverages, toothpaste and other products, the U.S. 46 cities are in the supply of tap water with fluoride, the U.S. Centers for Disease Control and Prevention even to put fluoride drinking water and vaccines, family planning, along with the column of the 20th century, 10 of the greatest health achievements.
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But the scientific community on the attitude of fluoride to drinking water is a shift in the United States National Research Council issued a report that in order to protect the health of children and adults, the U.S. Environmental Protection Agency should lower the levels of fluoride in drinking water standard (currently 4 mg / l).

"Global Science" magazine published an article that childhood is a critical stage of permanent teeth replace deciduous teeth, if long-term consumption of fluoride content of 4 mg / liter of water, the permanent teeth grow just color and shape will appear abnormal, become a fluoride dental; while for adults, the 4 mg / l of fluoride content also affect the physical health: increased risk of fracture, and may even suffer from moderate skeletal fluorosis.

Although most of the fluoride content in drinking water is far below the 4 mg / l, but we are not sure It was also from food, beverages, toothpaste, and other daily necessities in the number of absorbed fluoride. U.S. experts also noted that fluoride may cause bone cancer, brain and thyroid damage and so on.

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