I am 65+ and have had a colonectomy 5 years ago for removal of a large 3.1 cm. polyp attached to the colon wall. I’ve had one colonoscopy since with no more polyps and no cancer at any time. What are Mayo Clinic’s dietary recommendations to prevent colon cancer–in particular amount of red meat permissible? Any other dietary recommendations? Aside from osteoporosis I am in good health, keep up with all screenings, weigh 126# and exercise 5x/week.