The number of overweight people worldwide is growing at an alarming rate. An estimated 42 million children, including adolescents, worldwide are overweight (Ng et al. 2014). Consumers often believe that what they eat is more important than how much they eat. However, the rise in overweight and obesity is partly believed to be caused by the rapid growth of “supersized” portions of high-calorie foods in grocery stores and restaurants over the past decades that encourage excessive consu…