Even vegetarians need to read labels...there are hidden sources of animal products in nearly every processed food! "Natural Flavors" can mean animal blood, for instance!
Did you know that red dyes often are made up of crushed insects? That's right! A Slurpee could have 100's of female cochineal insects crushed up inside to make that toxic red that stains your tongue...Insects aren't vegetarian, and neither is animal blood, so really educate yourself and read the label of everything and ask questions at restaurants because your rice pilaf may be made with chicken broth...