The percent of time during which their esophageal pH was very
low (highly acidic) was cut in half, and they reported significant improvements in their symptoms via a standard GERD questionnaire that assesses subjective feelings of heartburn, pressure or discomfort inside the chest, a sour taste in the mouth, frequent
gurgling in the stomach, nausea, a feeling of pressure or a burning sensation in the throat, belching, flatulence, and more (21).