it was a tough week for one television doctor, dr. oz. he was getting grilled in front of the senate panel and forced to apologize over his claims that certain weight loss products are miracle also. dr. siegel, what did he say and what did he apologize for? >> he basically said he's a cheerleader for his audience. he sees people out there who are overweight. he thinks, i've got to help these people. david and i take this very seriously, you've got to stay within your expertise, what do you know about and what don't you know about. he's a cardiovascular surgeon, and has a great reputation as a surgeon. but when he starts talking about weight loss products, he's getting into the weeds there. a lot of nutritionists told me they don't see a lot of evidence for these particular items that say is a miracle pill. we talked about one here on the show here. we don't think that it works. also, he says green tea extract.