Out of all the recent health food and diet trends, none has been as successful as frozen yogurt. “Froyo,” as it is sometimes called, has swept the nation, including Iowa City. More than four stores are open now or will be opening soon in the Iowa City area. With all of the froyo buzz, one might not know which store was the best option. So to help, the West Side Story went out to see which frozen yogurt store was truly superior.