>> spend just a few minutes with bill clinton, and you'll see he's a changed man. for starters, he's a lot thinner than he was as president. when his half-hearted exercise routine -- >> really out of shape though. >> -- and his taste for fast food became the stuff of parody. >> your mcnugget is really from great britain. from somalia. >> dr. dean ornish has studied about and written about diet and heart disease for decades. >> mrs. clinton asked me if i would work with the chefs who cook for the first family and then began working with president clinton directly as one of his consulting physicians. the president did like unhealthy food and we were able to put soy burgers in the white house, for example, and have him get foods that were delicious and nutritious. >> but even with dr.