Do Tums Have Calories? An In-Depth Look at Antacid Nutrition
                                
                                
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                                    3 min read                                
                            
                                While the active ingredient, calcium carbonate, is not a source of calories, many Tums products do contain a small amount of calories, typically around 5-10 per tablet, due to inactive ingredients like sucrose and corn starch. This is surprising for many who view the antacid solely as a medicine for heartburn relief, not a food product.