Page 271 - Textbook of Pathology, 6th Edition
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carcinogens. The low fibre diet, on the other hand, does not 3. Inadequate protective factors: 255
provide adequate protection to the mucosa and reduces the As already mentioned, some components of diet such as
stool bulk and thus increases the time the stools remain in vitamin C, A, E, selenium, and β-carotenes have protective role
the colon. against cancer. These substances in normal amounts in the
iii) In the etiology of breast cancer, epidemiologic studies have body act as antioxidants and protect the cells against free
implicated the role of animal proteins, fats and obesity with radical injury but their role of supplementation in diet as CHAPTER 9
as yet unsubstantiated evidence. prevention against cancer is unproven.
q Environmental and Nutritional Diseases
