Estimating the effect of calorie menu labeling on calories purchased in a large restaurant franchise in the southern United States: quasi-experimental study.
Joshua PetimarFang ZhangLauren P ClevelandDenise SimonSteven L GortmakerMichele PolacsekSara N BleichEric B RimmChristina A RobertoJason P BlockPublished in: BMJ (Clinical research ed.) (2019)
A small decrease in mean calories purchased per transaction was observed after implementation of calorie labeling in a large franchise of fast food restaurants. This reduction diminished over one year of follow-up.