From Gary, just in case WHEL wasn't enough for you, a fruit and vegetables vs cancer study that I missed at the time. Moral: Don't bet your life on the gifts from plants. Look at the last line of the abstract for a some light entertainment:
"However, the nonsignificant trends observed suggesting reduced risk associated with a low-fat dietary pattern indicate that longer, planned, nonintervention follow-up may yield a more definitive comparison"
Invasive breast cancer at 0.42% in the eight years of fruit-n-veg vs 0.45% on the SAD. That's not much of a trend after you've employed 40 plus people for over eight years. As I see it all you can say, as per WHEL and PPT, is that they probably didn't kill anyone.