As a sequel to my previous entry on broccoli (and tomatoes) and prostate cancer, it appears that broccoli is just one member of a family of cruciferous vegetables that may help stop the growth of prostate cancer tumors. Other veggies which belong to this family are watercress, cabbage and cauliflower.
Dr. Singh’s study is based on phytochemicals, called isothiocyanates (ITCs), found in several cruciferous vegetables and generated when vegetables are either cut or chewed. His laboratory has found that phenethyl-ITC, or PEITC, is highly effective in suppressing the growth of human prostate cancer cells at concentrations achievable through dietary intake.
These results are still preliminary, gathered from animal trials. It appears that PEITC inhibits angiogenesis, a process that plays an important role in the growth and spread of cancer by forming new blood vessels that pass oxygen and nutrients to tumor cells.
Aside from prostate cancer, cruciferous vegetables have also been previously reported to help protect against lung cancer.