When Kate, who's 5'7" and weighs 304 pounds, recently went into a bridal store, she was told that no dress in the store would fit her leaving her crushed. She says she refuses to have a wedding ceremony until she's comfortable with her weight. Dr. Phil, author of "The 20/20 Diet: 20 Key Foods To Help You Succeed Where Other Diets Fail" , explores what led to Kate's condition and what she can do about it."