We usually link heartburn and upset stomach to soaring levels of stomach acid. But the truth is, many digestive complaints are the result of low stomach acid. And most people have no idea. . . .
When your stomach acid levels get too low (a condition known as hypochlorhydria), you may notice a variety of symptoms—and not all of them are in your gut. These are some of the most common symptoms of low stomach acid to look out for: bloating, diarrhea, acid reflux or heart burn, undigested food in stool, nausea . . .