Marshmallow-infused whip cream s’mores latte? Calorie counts help some decide

American University Starbucks consumers have been provided with calorie count information at the campus location for years, but the impact of this information on consumer behavior is mixed. Nationwide, Starbucks has required its stores post calorie counts next to drink names since June 2013. With that, Starbucks joined a host of other fast food chain…