Diluted Baking Soda for Upset Stomach Take 1/2 glass of water and dissolve 1 teaspoon of baking soda in it Stir it well till the baking soda gets dissolved in it properly. Drink this solution every four hours or according to the severity of the problem This solution gives relief from bloating, stomach acid and nausea People with high blood pressure or with sodium restricted diet should avoid this remedy. This remedy can cause increased blood pressure in people.