welcome, ms. engle. >> good morning, madam chair and members of the committee, i mary engle, social director for advertising practices at the federal trade commission. i am pleased to have this opportunity to provide information regarding the ftc's efforts to combat fraudulent weight-loss advertising. as you know the united states is facing an obesity epidemic. nearly 70% of u.s. adults are overweight or obese. excess weight and obesity -- bcr major exhibitors to health care costs and present a serious public health challenge. so it is a surprising there's strong interest in products that claim to vote weight loss. unfortunately, where there is strong consumer interest, fraud often follows. in the ftc's 2011 survey of consumer fraud, we found more consumers were victims of fraudulent weight-loss products than of any of the other specific frauds that we serve it. despite the continuing boom in the weight-loss industry, there exists very little scientific evidence that builds and settlements along can hel