Workplace wellness is under scrutiny by skeptics who argue that the return on investment (ROI) in wellness programs does not justify their costs. What’s the truth here? Can wellness programs help employers reduce out-of-control health care costs? The answer, most emphatically, is yes. But we must first go beyond unduly narrow interpretations of ROI (i.e., “claims ROI”), to understand how properly designed wellness programs can help employers lower health care costs while providing other types of cost savings and competitive advantages.