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英国胃肠病学专家指出,高纤维食能防止胃肠道疾病.因为,纤维食对正常胃肠道功能有延迟胃排空,噌加缓冲胃溶量,调节小肠运行时间和减少对碳水化合物与脂肪的吸收,同时能促进肠道运行,增加大便量.调查资料表明,肠道应激综合征、胆石症、结肠癌等,在美国、英国等低纤维饮食国家则发病率高。而在高纤维饮食发展的国家中则发病率低。医学家们认为,这与食物中纤维含量有密切关系.但是,高纤维饮食也有副作用,如能减少钙、锌、铁的吸收,对失血多的人可能导致缺铁性贫血,以及诱发肠梗阻等,不过对绝大多数人一般不致于有害身体健康.
British gastroenterology experts pointed out that high-fiber diet can prevent gastrointestinal diseases, because fiber has delayed gastric emptying of normal gastrointestinal function, bovine plus slow-dissolving gastric volume, regulate intestinal run time and reduce carbohydrate And fat absorption, at the same time can promote intestinal operation, increase the amount of stool .Investigation data show that intestinal stress syndrome, cholelithiasis, colon cancer, in the United States, Britain and other low fiber diet countries, the incidence is high. In countries with high fiber diets, however, morbidity is low. Medical scientists believe that this is closely related to fiber content in food, but high-fiber diet also has side effects, such as reducing the absorption of calcium, zinc and iron, and may cause iron deficiency anemia in those with excessive blood loss and intestinal obstruction Etc., but for the vast majority of people will not generally be harmful to health.