Put simply, the problem begins with the over consumption of highly acidic foods. Then, esophageal muscles can also be responsible because they play an essential role in digestion and transporting food from your mouth to your stomach and then to the intestines. Muscles assist food as it travels through the body.
Entrance to the food pipe, arrival to the stomach and exit from the stomach is all controlled by valves which function by stimulating the entry, exit, and backflow of food that is being digested. The muscle which principally controls backflow from the stomach back into the esophagus is the lower esophageal sphincter, or LES. Food can stay in certain areas longer than they ought to during the digestion process or wind up somewhere it should not be because valves are not functioning properly or muscles have become weak.
Partially digested food that is allowed to flow backwards from the stomach into the esophagus brings stomach acids with it, which produces a warm, sour taste in ... more.
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