The critical issue with candy is the format the candy is in: hard, chewy, sticky, tacky, crunchy; the sugar content per serving; how often it is consumed in the day/week. The worst candy to consume is a sticky/chewy/tacky one because it concentrates the sugar where it adheres to the tooth and takes mechanical removal from the tooth surface. The saliva cannot clear it from the mouth, changing the pH in the mouth and supporting bacterial growth over extended time. The perfect recipe for decay! The best, least damaging candy that one can have daily (in moderation) is dark chocolate. On an American diet, that would be 1 ounce (2 mini red wrapper Dove bars or 4 purple foil Hershey's kisses) per day.