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流行病学资料显示维生素对肿瘤的发生具有预防作用，特别是抗氧化维生素Ａ、Ｅ和β－胡萝卜素（β－Ｃ）可减少食管癌及其异型增生的发生［１］，有人对７个国家１６个队列的人群进行食物中抗氧化维生素含量与胃癌发生率的研究，随访２５年，发现维生素Ｃ摄入量与胃癌的发...
Epidemiological data show that vitamins have a preventive effect on tumorigenesis, especially the antioxidant vitamins A, E and β-carotene (β-C) can reduce the occurrence of esophageal cancer and dysplasia [1], there are 7 The national population of 16 cohorts studied the content of antioxidant vitamins in food and the incidence of gastric cancer. Followed up for 25 years and found vitamin C intake and gastric cancer...