4And They Said It Wasn't Possible relates the true stories of people who suffered with Crohn's disease, ulcerative colitis, irritable bowel difficulties, and rheumatoid arthritis. Their health problems were reversed through diet. Karen Hurd, a nutritionist, tells the stories of her clients in an interesting narrative style. She gives the specifics of how to overcome these debilitating conditions which her clients had been told were impossible to cure.