Matching Pairs CHEWING GUMOnline version CHEWING GUM by Royner Villalobos 1 Each American chews about 1.8 pounds 2 Chewing sugar-free gum after meals aids saliva production, 3 Chewing gum dates back millennia, 4 Sugar-free gum comprises 5 Some studies suggest chewing gum 6 Global chewing gum sales reached 7 Chewing gum may enhance concentration, 8 Chewing gum comes in various flavors 9 The US dominates the chewing gum market, over 80% of US gum sales. reducing tooth decay risk. $19.5 billion in 2020. (800 grams) of gum annually. used by ancient civilizations like the Mayans. accounting for over 30% of sales. reduce stress, and boost alertness. improves cognitive function and memory. and forms, including sticks and pellets.