It’s funny how you’ve flip-flopped on this issue. Here’s a post of yours from a previous thread:
http://boards.straightdope.com/sdmb/showpost.php?p=8468898&postcount=11
So does a “balanced diet” with fruit/vegetable/fiber prevent colon cancer or doesn’t it?
Were you misrepresenting the data back then or are you misrepresenting it now?