Gum base is the main ingredient in chewing gum that provides its chewy texture. It is a blend of natural and synthetic materials, including elastomers, resins, and waxes. These components give gum its elasticity and help it maintain its shape while being chewed. The composition of gum base can vary between brands, but it is generally designed to be non-digestible, meaning it passes through the digestive system without being broken down. This allows the flavorings and sweeteners added to the gum to be released gradually as it is chewed, enhancing the overall experience for the consumer.