Yeah you grind it with those rocks who are inside your body (but sometimes they hurt and break and no - they don't regenerate), then it gets pushed through a tube into an internal vat of acid, there is gets dissolved (with some gasses coming out where you ate and some where it continues its journey). Then it gets transported over up to a few days through internal tubes in which it is hoped your "food" breaks apart so it can be used. Sometimes that gets infected, too.
Yeah you grind it with those rocks who are inside your body (but sometimes they hurt and break and no - they don't regenerate), then it gets pushed through a tube into an internal vat of acid, there is gets dissolved (with some gasses coming out where you ate and some where it continues its journey). Then it gets transported over up to a few days through internal tubes in which it is hoped your "food" breaks apart so it can be used. Sometimes that gets infected, too.