Moderate consumption of baking soda is generally harmless to the human body, but if used in excess or long-term use of the human body has a certain degree of harm, will cause indigestion, malnutrition and other symptoms. Baking soda, also known as sodium bicarbonate, is a kind of antacid, which can neutralize stomach acid when taken orally, and relieve heartburn, acid reflux and other symptoms caused by excessive stomach acid. And patients with gout can take baking soda to alkalize the urine, which is a commonly used clinical drug. However, if baking soda is taken in excess, loss of appetite, nausea and regurgitation may occur. Moreover, baking soda is a weak alkaline substance, long-term consumption of large quantities of baking soda will destroy the B vitamins in food, resulting in B vitamin deficiency; as well as will affect the secretion of gastric acid, so that the food is not digested adequately, resulting in a lower nutrient absorption and utilization, which is likely to cause the occurrence of symptoms of malnutrition. In summary, the general population is not recommended to consume baking soda for a long time or in large quantities; if gout patients need to use, should also be used under the guidance of a doctor, do not blindly take on their own.