Research suggests that chewing gum may have subtle effects on metabolism. The act of chewing itself, known as mastication, can trigger certain physiological responses that influence energy expenditure and digestion.
When you chew gum, your body activates the muscles of the jaw and face, which slightly increases energy use. Studies have shown that chewing gum can raise heart rate and stimulate the sympathetic nervous system, the same system involved in the “fight or flight” response, resulting in a modest boost in calorie burning. This increase, however, is relatively small, averaging only about 10 to 15 additional calories per hour.
Chewing gum can also influence appetite and food intake. Some research indicates that it may reduce feelings of hunger and help control snacking, possibly by promoting saliva production and giving the mouth something to do, which can trick the brain into feeling more satisfied. However, results are mixed, and gum is not a reliable weight management tool on its own.
Additionally, sugar-free gums containing ingredients like xylitol can support oral health and help regulate insulin response compared to sugary gums, which may contribute to better metabolic stability over time.
In summary, chewing gum may slightly increase metabolism and reduce appetite, but its effects are modest. While it can be a helpful complement to a healthy lifestyle, meaningful changes in metabolism come primarily from consistent exercise, balanced nutrition, and adequate sleep.