If you have ever wondered whether chewing gum burns calories, you have likely realized that there are two conflicting factors in determining the answer. On the one hand, the continuous action of your jaw burns energy, whilst on the other hand the chewing gum secretes liquid that supplies energy. So the question of how many calories do you burn chewing gum boils down to whether there is a net result between these two competing influences.
Your average stick of chewing gum weighs in at 3 grams and can supply up to 15 kcal of energy, depending on sugar content. There are zero-sugar zero-calorie varieties available, so if chewing gum is a regular habit for you then you should consider switching to this kind. It is commonly accepted that the average chewing gum supplies between 10 and 12 kcal and the actual activity of chewing the gum has been found to burn the exact same amount! So the question of how many calories do you burn chewing gum for an hour actually becomes meaningless, as the net result is zero.
It should be noted, however, that some studies have found that people who chewed gum before meals were less hungry and snacked less throughout the day. So the modified question of how many calories do you burn chewing gum for 8 hours becomes rather complicated, as rather than burning existing energy, the action of chewing gum prevents the intake of additional energy. However, this finding should be moderated with the well known result that overuse of chewing gum produces too much saliva, which the stomach interprets as readiness to consume nutrition. This means that the stomach will prepare for a meal that doesn’t actually arrive, which in the long run could have negative effects.