Habs M, Schmähl D
J Cancer Res Clin Oncol. 1980 Jan;96(1):1-10. doi: 10.1007/BF00412892.
Since unbalanced diets may increase the carcinogenic risk for certain organs, a balanced form of nutrition is to be recommended from the present point of view. It can also be recommended to avoid hyperalimentation, since this seems to have a positive effect on the cancer mortality risk; furthermore, ideal-weight individuals run a definitely lower risk of suffering a cardiac infarct than overweight individuals. Certain anticancer diets cannot be established. But the intake of juices and salads with a high vitamin C content can inhibit the formation of nitrosamines directly after the intake of food, because the nitrosation is prevented by nitrite interception. Negative influences of diets with a high fiber content are not known. Positive effects are discussed. Since it also prevents obstipation, it can well be recommended. Since dietary habits cannot shortly and easily be changed and changes in nutrition have a considerable impact on the personal quality of living, recommendations favoring certain diets should be given with all due caution. In our opinion the scientific basis for recommendations seems to be too small to justify very restrictive diets for cancer prevention.
由于不均衡饮食可能会增加某些器官的致癌风险，从目前的观点来看，建议采用均衡的营养形式。也建议避免过度营养，因为这似乎对癌症死亡风险有积极影响；此外，体重理想的个体患心肌梗死的风险肯定低于超重个体。某些抗癌饮食尚无定论。但摄入富含维生素C的果汁和沙拉可以在进食后直接抑制亚硝胺的形成，因为通过截留亚硝酸盐可防止亚硝化作用。高纤维含量饮食的负面影响尚不清楚。人们在讨论其积极作用。由于它还能预防便秘，因此完全可以推荐。由于饮食习惯无法在短期内轻易改变，且营养变化对个人生活质量有相当大的影响，因此在推荐某些饮食时应格外谨慎。我们认为，推荐的科学依据似乎太少，不足以证明为预防癌症而采用非常严格的饮食是合理的。
