The outer shell of this TUMS (first out of container) actually broke away my natural tooth when I bit down on it. Whether container was not stored properly or a bad formula this TUMS is costing me hundreds to get my tooth fixed. I have not had any problems with the other flavors. Saving the container to take to the Dentist. Be careful when you bit down on these Chewy Bites as the outer layer might be stronger than your jaws!!