ScienceOur studio guestTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience04/03/2014April 3, 2014Dr. Hans-Georg Joost from the German Institute for Human Nutrition speaks with us about overweight, the risks of dieting, and what you should know about belly fat.https://p.dw.com/p/1BaSyAdvertisement