In a study of commercial advertising, participants were divided into two groups and given the same snack  One group watched 10 minutes of a popular comedy video followed by five minutes of a commercial about food; the other group served as a control group, they have been watching 15 minutes of popular comedy shorts  The study found that the subjects who watched commercial food consumed significantly more snacks than the other group
The longer the food ads played, the more snacks the group consumed.
 Research suggests that food commercials can effectively increase people's consumption of snacks