Director and co-founder of the Yale Prevention Research Center, Dr. Katz is recognized as one of America’s top physicians in preventative medicine by the Consumers’ Research Council of America and is the recipient of many awards for his contributions to public health and medical education. He is a prominent voice in health and medicine in the media, serving as ABC News’ medical consultant. He speaks routinely at conferences and meetings throughout the US and around the world. He is a recognized thought leader in nutrition, chronic disease prevention/health promotion, weight management and integrative medicine. He is the principal inventor of the Overall Nutritional Quality Index (ONQI) used in the NuVal Nutritional guidance System. As an expert health consultant, Dr. Katz addresses the challenges in our “obesigenic” environment, and describes the blend of public politics and personal empowerment needed to take us toward a healthier future.