Mastic gum is a special resin that comes from a tree called Pistacia lentiscus. This tree grows in a place called the Mediterranean, especially on a Greek island called Chios. People have been using mastic gum for a really long time because it's good for our bodies. To get mastic gum, they make cuts in the tree's bark, and then a yellowish resin comes out and hardens into little tears. They collect these tears and clean them up to make mastic gum. Mastic gum is famous for helping our tummies and