A March Prevention article on 'The Case for Natural Foods' is my recommended read for Gratitude Gourmet readers. It mentions a study by Dean Ornish, M.D. and his colleagues where they assigned men with Prostate Cancer to a "clean living" intervention that included a wholesome, plant-based diet, regular physical activity, and stress management. As a result, these men with Prostate Cancer "demonstrated a marked reduction in the activity of genes that can promote prostate cancer growth and a significant increase in the genes that are able to control it". The article is here.