Diet acrimony , sootiness , salt bloats , mildew changes , cankered food : hot food stimulates gastric mucous membrane , as time passes injures gastric mucous membrane ; carcinogenic substance of fumigated food generation can be caused and aggravating illness ; nitric acid salt is contained in souse food , very powerful carcinogen can be formed after with food medium nitrite is united in wedlock - - inferior saltpetre amine ; mildew changes element of very strong carcinogen yellow aspergillus is contained in food ; cankered material can produce effluvial carcinogen aldehyde . 2 忌食辛辣、烟熏、盐腌、霉变、腐烂食品：辛辣食物刺激胃粘膜，久而久之损伤胃粘膜；熏制食物产生致癌物可诱发和加重病情；腌制食物中含有硝酸盐，和食物中的亚硝酸盐结合后可以形成很强的致癌物质? ?亚硝胺；霉变食物中含有很强的致癌物质黄曲霉素；腐烂的物质可以产生恶臭的致癌物质乙醛。
