Prof Wendy Demark-Wahnefried discusses the evidence that diet and exercise benefit cancer patients.

Whilst it is known that patients who are overweight at diagnosis have a much worse prognosis it is not yet understood if weight loss after the point of diagnosis will improve prognosis, however, there is evidence to show that weight loss after diagnosis does decrease the likelihood of cardio-vascular disease or secondary cancer.

Prof Demark-Wahnefried explains the benefits of half an hour of daily exercise in terms of cardio-vascular disease, diabetes and secondary cancer incidence and outlines observational evidence which suggest that exercise may prevent cancer incidence.