Losing weight sounds simple in mathematical terms. Burning more calories than you consume = weight loss, but the reality is far more complicated. On today's Talk of Iowa, we’ll explore the science of weight loss, we’ll find out why it so difficult for some people to lose weight and we'll look into why keeping the weight off can be a daily challenge. Guests include Dr. Allyn Mark, Dr. William Haynes and Amy Fletcher of the University of Iowa.
