I am sorry to hear of all you have gone through. I wonder if this video is a bit general, because on Dr. McDougall's web site he recommends a simple sigmoidoscopy exam around age 60. It has far fewer risks being 2 feet long instead of 6 feet long, and statistically detects about the same amount of polyps.

Thank you so much VegSource for having such guts to do this! You are doing the work reporters (like I used to be) should be doing. GreatVeganAthletes.com just posted me as 1 of 5 women runners on their site.

At 60, I just placed 3rd in State (FL) in the 200, 400 & 1500 meters, 4th in the 100 meters. My 100m time is :06 slower than NCAA college girls listed in the USC '12 Media Guide. I go to Nationals in Cleveland this summer. Placed in 42 5K races or longer in my age group since '06. 1st marathon in '10, 5th oldest female to finish.

Publisher of "Running Journal" where I'm a columnist, tells me it's rare to find anyone with my sprint times finishing a marathon. Only 1 answer: plant-based diet! Thanks for your great work!! Keep it up!!!