Chewing chewing, the food (now called a bolus) is swallowed. It enters the esophagus and via peristalsis continues on to the stomach, where the next step of digestion occurs. Premastication is sometimes performed by human parents for infants who are unable to do so for themselves. The food is masticated in the mouth of the parent into a bolus and then transferred to the infant for consumption. (Some other animals also premasticate.) Cattle and some other animals, called ruminants, chew food more than once to extract more nutrients. After the first round of chewing, this food is called cud. Chewing is
Chewing gum industry Chewing gum industry Two multi-national companies, Wrigley and Cadbury, together account for some 60% market share of the worldwide chewing gum market. The global market shares for the top five chewing gum companies are estimated to be: The remaining 17% of the global market is provided by an estimated 200 to 250 smaller gum companies, some of which are listed below. The worldwide chewing gum industry in 2012 is estimated to be worth $26 billion in sales, and has grown by more than 14% in the last three years. Chewing gum accounts for 85% of global sales, and bubble gum