I'm not aware of any, but it doesn't take a rocket scientist to conclude that healthy natural eating and habits win out over the conventional diet full of chemical, drugs and junk food.
Buz, eveything's a chemical. But just being "more healthy" doesn't automatically translate into a greater risk of cancer.
I believe they're one of the healthiest groups in the nation.
That sounds like a Buzsaw Fact, like "the sun is causing global warming." Do you have some evidence on that? What groups were tested?