The effects of chewing gum have recently been addressed by research and studies occurring at independent universities. The results of these studies have shown that gum offers several benefits to consumers.
According to research by associate professor of nutrition and food sciences at the University of Rhode Island Kathleen Melanson, chewing sugar-free gum has the benefit of suppressing the appetite. Melanson suggests this is due to signals sent to the brain while chewing that indicates the stomach is receiving food. Louisiana State University researcher Paula Geiselman, Ph.D. found that chewing gum three times every hour after lunch made subjects eat fewer snack foods.
Dr. Tim McCashland, associate professor of medicine at the University of Nebraska Medical Center in Omaha, states that chewing gum can help relieve heartburn because it produces extra saliva. Excess saliva eases the movement of foods and drinks down the esophagus.
A 2008 study led by professor Andrew Scholey, professor of Behavioral and Brain Sciences at Swinburne University in Melbourne, Australia, suggests that gum chewing can help reduce anxiety when people are experiencing higher levels of stress than normal. Scholey states the reduction in stress may be due to gum chewing increasing the subject's blood flow.