Dean Ornish Vegetarian Diet Quotations

Eating a vegetarian diet, walking (exercising) everyday, and meditating is considered radical. Allowing someone to slice your chest open and graft your leg veins in your heart is considered normal and conservative.

I don't understand why asking people to eat a well-balanced vegetarian diet is considered drastic, while it is medically conservative to cut people open and put them on cholesterol lowering drugs for the rest of their lives.