date:Dec 14, 2018
on of policies to require calorie counts at restaurants, most studies of calorie labels in fast-food restaurants in places that have already adopted labeling, including New York, have found little evidence that fast-food consumers are changing their behaviors in response to the labels.
On the other hand, research from the Perelman School of Medicine at the University of Pennsylvania suggested in 2016 that adding color-coded or numeric calorie labels to online food ordering systems can help red