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Too much vitamin C may cause leukoderma ( 2003-11-26 09:34) (Xinhua) Excessive intake of vitamin C, which is widely used to enhance immunity and postpone aging of the skin, could lead to leukoderma, experts warn. Liu, a young lady in Xining city, capital of the northwestern Qinghai Province, used to drink 1,000 ml of vitamin C enhanced juices a day in order to keep fit, a face-lifting recipe recommended by her colleagues. In four months, Liu found her skin started to fall in patches and was diagnosed with leukoderma. The disease has long been associated with excessive vitamin C intake, said Jia Hongkui, a dermatologist with the Qinghai Provincial Hospital of Traditional Chinese Medicine. Altogether 11, or 2.3 percent, of the 479 leukoderma patients Jia received over the past months had been vitamin C addicts, he found in his research. With a dose of one to three grams of vitamin C per day, one may suffer from leukoderma in one to six months, he said. "Too much vitamin C would reduce the copper ion in the human body, and lack of copper ion is widely believed to cause leukoderma," he said. For most people, a balanced diet with fresh fruits and vegetables could provide enough vitamin C, said Jia. "So do not take vitamin C enhanced drinks or pills unless they are prescribedby your physician."
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