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《英国医学杂志》第281卷第6246期(1980年)第957页报道:最近实验证明约有半数的癌可能与饮食有关,食物和饮料综合因素的构成是较之吸烟为更重要的致癌危险因素。脂肪的总摄取量和乳癌、结肠癌发生率之间的密切联系,以及实验证实降低能量的摄入能明显地减少动物肿瘤的发生率,这是癌症和饮食之间的两个重要因素。第三个因素是积累了许多证据证实了维生素A与癌
British Medical Journal Vol. 281, No. 6246 (1980) p. 957 Recent experiments show that about half of cancers may be diet-related and that the composition of food and beverages is more important than the risk of smoking factor. The close relationship between the total fat intake and the incidence of breast cancer and colon cancer, as well as experiments demonstrating that reduced energy intake can significantly reduce the incidence of tumor in animals, are two important factors between cancer and diet. The third factor is the accumulation of much evidence of vitamin A and cancer