Literally hundreds of studies have been conducted addressing the relationship of some type of plant foods or plant food constituents and cancer risk. A clear majority of these studies demonstrate that fruits, vegetables, legumes, whole grains, tree nuts, spices, and seeds, as well as specific types of food within these categories including citrus fruit, tomatoes, cruciferous vegetables, soybeans, and wheat, for example, reduce the risk of one or more types of cancer [8][9][10][11]. On the other hand, a number of studies have examined relationships between processed and red meat intake and colorectal cancer, many of which have been summarized in at least one of four meta-analyses over the past decade [8,[12][13][14]. A systematic review and meta-analysis of epidemiological studies relating the amount of processed and red meat consumed to increased risk of colon cancer, showed that processed meat increased the risk of colon cancer by 58% per 100gm and red meat increased the risk of colorectal adenoma by 27% per 100gm [15].