Tums and other antacid ... quickly to neutralize esophageal and stomach acid to relieve symptoms. This includes signs of ...

Tums contain the active ingredient calcium carbonate, an alkaline substance. When it mixes with an acid, it raises the pH level, making the stomach’s contents less acidic. This reduces the pain ...

Translation, per Cleveland Clinic: food is digested effectively through the gastrointestinal tract, and that nagging stomach pain is neutralized. While Tums and sidewalk chalk both share the ...