Epidemiological studies and animal studies have demonstrated that diets high in cruciferous vegetables result in a lower prevalence and reduced incidence of several different types of cancer. These include lung, colon, breast, and ovarian cancer. A recently published study suggest that cruciferous vegetable intake may reduce the progression of prostate cancer. Prostate cancer is the direct cause of over 200,000 deaths per year and over half a million new cases of prostate cancer are diagnosed every year world-wide. The incidence is also increasing which is further evidence that we are indeed, as a global community , losing the battle against all types of cancer. In an article published in the journal of the National Cancer Institute, (Prospective Study on Fruit and Vegetable Intake and Risk of Prostate Cancer; Kirsh et al. 2007; 99: 1200-1209) researchers concluded that a high intake of cruciferous vegetable, including broccoli and cauliflower, may be associated with reduced risk of aggressive prostate cancer, particularly extra prostatic disease.”
In the prospective study of men in the screening arm of a long term randomised screening trial, researchers from Canada and the US reported an increased intake of cruciferous vegetables was associated with a 40 percent reduction in prostate cancer risk, with broccoli and cauliflower offering the most protection. The cancer-fighting properties of cruciferous vegetables have been known for some time. These effects are thought to be due to the content of sulphur containing phytonutrients known as glucosinolates. Glucosinolates are metabolised by the body into isothiocyanates. They are also found in broccoli as sulphoraphane.
Globally, chronic diseases such as cancer account for a greater proportion of global deaths than all infectious disease combined. The prevalence of these chronic degenerative diseases is increasing and global health authorities have stated explicitly that a deficiency of fruit and vegetables is to a large degree, responsible for this alarming trend.