美国生物化学家西夫特说,维生素A缺乏会惹致胃溃疡。如将啮齿动物暴露于有毒化学品中,机体会使血液从内脏和皮肤移至肌肉(是一种应激反应),使胃等器官血液供应减少。而维生素A能取消这种应答反应。另外,增加食物维生素A,可减轻外界因素对机体的某些损害。流行病学家布洛衣脱曼认为,食物中缺乏铁会促进胃壁细胞的 Si Fu Te said biochemist, vitamin A deficiency can cause gastric ulcer. When rodents are exposed to toxic chemicals, the body moves blood from the viscera and skin to the muscles (a stress response), reducing the blood supply to organs such as the stomach. Vitamin A can cancel this response. In addition, increasing food vitamin A, can reduce some of the external factors on the body damage. Epidemiologist Bloch Deman believes that the lack of iron in food can promote gastric parietal cells