Hiatal hernia can also cause heartburn. Bananas also have such a chemical that stimulates your stomach lining and thus it produces more mucus to act as buffer against acid. She may be able to suggest another course of action. Stomach acid is necessary to digest protein and food, activate digestive enzymes in your small intestine, keep the bacteria from growing in your small intestine, and help you absorb important nutrients like calcium, Natural cures indigestion during pregnancy Here is a rundown of such foods. Heartburn. Or you could take a garlic capsule to relieve the intensity of your symptoms. The standard PPI has been omeprazole Prilosec , which is now available over the counter without a prescription. It may help to take the antacid at mealtimes or before bed if you regularly have night-time indigestion NHS Choices 2014a .