Robert Thomas, MbChb, MRCP, MD, FRCR, discusses the importance of having a healthy diet for cancer patients. Prof. Robert Thomas suggests that cancer patients and the general community, should increase the intake of fruit and vegetables, rich in polyphenols. he then goes on to discuss the results of a double-blind, randomised clinical trial (Pomi-T), where the intake of whole-food supplements rich in polyphenols, showed to reduce the levels of prostate-specific antigen (PSA) and tumour size.