Joe 
          goes into the lab for various tests and measures and then starts the 
          dietary regimen. 
        Does 
          the sight of blood make Joe pass out? Where does Carole keep all those 
          stool samples? Is Joe shocked when he passes purple and green stools? 
          Does Joe's friend Jill mind dining alone for 19 days? Does Joe cheat 
          on his diet or does Carole use peanut butter pizza to make him stick? 
          Could 
          Joe quit the study if he wanted to? 
        What 
          would you do? 
        Click 
          on the picture link above to watch what Joe does.