Chewing gum increases appetite

Chewing gum increases hunger and makes you feel hungry for several reasons.

• Chewing “prepares” the body for foodChewing can stimulate saliva, gastric juices, and digestive signals. Because the chewing motion is identical to that of swallowing food, the brain can interpret it as "food is coming."
• While chewing gum, even homemade, The mechanical stimulus pushes the salivary glands to produce more saliva: at that point, if food is not consumed and the required energy supply is lacking, the body can be induced to signal hunger.
• Even taste and smell  They can stimulate digestive reflexes, saliva production, and stomach and intestinal activity, as the body sends the same signals as when we eat. And if food doesn't arrive, the body is stimulated to increase appetite. 
• Sweeteners and sweet tasteMany sugar-free gums have a sweet taste. In some people, this increases cravings, especially sweet or carbohydrate-rich foods.
• Psychological effect: If you chew to keep your appetite at bay, you sometimes end up thinking about food even more.

A 2022 study by a research group at the Max Planck Institute for Evolutionary Anthropology, entitled The Cost of Chewing, investigated the energetic cost of human chewing: how much energy we expend chewing and what evolutionary role this has had.

The main findings of the research say that:

• chewing actually uses energy;
• harder foods require more muscular work;
• In human evolution, cooking and softer foods may have reduced the “cost” of chewing.

Read also:

• Anna Bullus, the English designer who invented a line of products from recycled chewing gum
• Homemade chewing gum