PEANUT BUTTER CUPS Reese’s Peanut Butter Cups are made with the controversial ingredient PGPR (Polyglycerol polyricinoleate, which is used as) a substitute for cocoa butter. High quantities cause liver enlargement. PGPR is made from castor beans that reduces the viscosity of chocolate. PGPR can cause gastrointestinal discomfort, allergic reactions in children. TBHQ in peanut butter cups, comes from petroleum, related to butane, can be toxic causing nausea, vomiting, ringing in the ear, delirium, collapse, causes stomach cancer in lab rats, fragment DNA, & damage the human lung & umbilical cells.