The World Obesity Federation represents professional members of the scientific, medical and research communities from over 50 regional and national obesity associations. Through its membership the World Obesity Federation creates a global community of organisations dedicated to solving the problems of obesity. The mission of the World Obesity Federation is to lead and drive global efforts to reduce, prevent and treat obesity. The functions include hosting the biennial International Congress on Obesity, publishing four peer-reviewed scientific journals, and hosting online training in obesity treatment for health professionals.