I think it's a little more complicated than just staying away from white flour

Sugar, Rice, Pasta, Potatoes all cause insulin spikes in most of us. I think the real key is eating low GI (Glycemic Index) foods, to keep our insulin low so we burn fat instead of storing it.

I personally am not a big "talk show" fan. To me they are just another version of media hype and will jump on whatever bandwagon is popular that day or week, just to get the ratings.