Final answer:
Antacids are the exception, as they help neutralize stomach acid and provide relief from heartburn, unlike fatty foods, chocolate, and peppermint which should be avoided.
Step-by-step explanation:
People with heartburn should avoid all of the following except antacids. Foods and drinks such as fatty and fried foods, chocolate, and peppermint are known triggers for heartburn and Gastroesophageal Reflux Disease (GERD). In contrast, antacids are substances used to neutralize excess stomach acid (HCl), providing relief from the discomfort caused by heartburn. The typical reaction involves calcium carbonate (CaCO3) reacting with HCl to form calcium chloride (CaCl2), water (H2O), and carbon dioxide (CO2), which can reduce acid in the esophagus and might produce a belch, indicating that the antacid is working.