18 Home Remedies for Upset Stomach

Make your own antacid with baking soda. (Remember to read the antacid instructions on the baking soda label before you take this home remedy.) Mix 1/2 teaspoon baking soda in 1/2 glass water and drink away. Also remember that baking soda is a sodium compound (sodium bicarbonate), so if you have high blood pressure or are on a sodium-restricted diet, don't use this remedy.