Whole Foods CEO John Mackey to Staff: Get Slim, Save Money

Whole Foods Markets (WFMI) CEO John Mackey (pictured), unsurprisingly, is passionate about health. Leading the country's largest and most respected chain of natural groceries, he's often credited with bringing natural-foods stores to the mainstream. On a personal note, he has been a vegan for many years and has adopted a diet free of vegetable oils, sugars and almost any processed food. So when he launched a plan to give his employees discounts on health insurance if they maintained lower readings for blood pressure, cholesterol and body mass index, it should have barely made a blip in the annals of corporate wellness.