Chewing gum is a type of gum made of chicle, a natural latex product, or synthetic rubber known as polyisobutylene. Chewing gum in various forms has existed since at least 5,000 years ago during the Neolithic period. 5,000-year-old chewing gum with tooth imprints, made of birch bark tar, has been found in Kierikki, Yli-Ii, Finland. The bark tar of which the gums were made is believed to have antiseptic properties and other medicinal advantages. The ancient Aztecs used chicle as a base for making a gum-like substance. Women in particular used this gum as a mouth freshener. Forms of chewing gums were also used in Ancient Greece. The Greeks chewed mastic gum, made from the resin of the mastic tree. Many other cultures have chewed gum-like substances made from plants, grasses, and resins. The American Indians chewed resin made from the sap of spruce trees. The New England settlers picked up this practice, and in 1848, John B.
Contributions by Bunchofgrapes, Shaddack, and Infrogmation.
There is less than 5 calories in a piece of Orbit White gum.