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问:我有白斑家族病史,最近由于天气热喝了许多饮料,摄入了过多的维生素C,诱发了白斑。去医院检查,医生说家族中有白斑史者,要尽量少吃富含维生素C的食物。补充维生素不是可以提高免疫力吗,为何会诱发疾病?应该如何合理补充维生素呢?湘潭市陈国军答:“是药三分毒”。不按实际需要和规定剂量使用维生素,补药也能成为“毒药”。维生素分为水溶性和脂溶性两种。水溶性维生素服用后,可以随着尿液排出体外,毒性较小,但大量服用可损伤人体器官。例如E期超过正常剂量服用维生素C,可能刺激胃黏膜出血并形成尿路结石。
Q: I have a history of a white-spotted family. I recently drank a lot of drinks because of the hot weather and consumed too much vitamin C to induce white spots. Go to the hospital for examination, the doctor said the family history of leukoplakia, try to eat less foods rich in vitamin C. Vitamin supplements can not improve immunity, why it will induce disease? How to rationalize the vitamin? Xiangtan City, Chen Guowu A: Not according to the actual needs and the provisions of the dose of vitamins, tonic can become “poison ”. Vitamin is divided into two kinds of water-soluble and fat-soluble. After taking water-soluble vitamins, you can excreted with the urine, less toxic, but taking large quantities can damage human organs. For example, E over the normal dose of vitamin C, may stimulate gastric mucosal hemorrhage and the formation of urinary tract stones.