Dietary fat and risk of breast and colon cancer

Abstract

Recent prospective studies have shown positive associations for the consumption of animal fat and red meat in relation to risk of colon cancer in women, and in relation to risk of adenomatous polyps in men. The studies were consistent in finding no association for vegetable fats. In contrast, associations between fat intake and risk of breast cancer have not generally been found in case-control and cohort studies in man. It is suggested that the level of dietary fat early in life may have some influence on breast cancer incidence. Alternatively, animal studies suggest energy restriction during the years of growth and development can substantially reduce the risk of breast cancer.