Initial Posting: 4/26/2015    Last Update: 9/14/2019
Answer: Taking Tums can significantly contribute to your daily calcium intake, and it can be easy to exceed the recommended daily intake for calcium if you take several tablets per day. Since getting more than 1,000 mg of calcium daily from sources other than food is associated with certain risks, it's important to consider how many tablets you are taking and what strength they are (i.e. regular, extra strength, "ultra," etc.). More information about this is found in the Calcium Supplements Review.
Calcium can also interfere with the absorption of certain medications and other minerals. See the Cautions section of the Calcium Review and the Encyclopedia article about Antacids for more about this.