ABSTRACT
There is substantial evidence from studies in experimental animals that a number of factors such as age, sex, hormonal status, and nutrition modify the body’s response to noxious chemicals, including carcinogens. It might be argued, however, that much of this work has little direct relevance to human cancer. Studies of the distribution of different types of cancer between and within populations have provided important clues to possible links between food and oncological disease in man. There is increasing biochemical evidence in support of these findings particularly in the case of cancer of the colon and breast.
