A love of junk food, television and computer games has sent the country's waistline ballooning, with Australians weighing in as the world's second fattest nation after the United States.

Americans, and American physicians, are concerned about ballooning waistlines and the accompanying health problems.

Americans are getting fatter by most any measure — expanding waistlines, body mass index, or the incidence of obesity-associated illnesses like type II diabetes.