Remedies for an upset stomach include apple cider vinegar and a BRAT diet, states Healthline. Soothing the stomach with a heating pad and consumption of peppermint and ginger also help remedy an upset stomach. An individual should visit a doctor if the symptoms persist despite the use of these remedies.
Apple cider vinegar contains acids that decrease the digestion of starch, allowing the starch to flow to the intestines and maintain the healthy status of the gut bacteria, explains Healthline. The BRAT diet — consisting of banana, rice, applesauce and toast — limits patients to these stomach-calming foods. This diet is low in fiber and contains no salt or spices that could worsen the symptoms of stomach upset.