Napier Duckworth

The gastric acid plays an essential role along the way of food digestion; however, its regurgitation in to the esophagus results in irritation. The low esophageal sphincter, a circular muscle located at the bottom of the throat, contracts as a way to avoid the reflux of stomach acid and food

foods to reduce acidity  from the stomach aids in digestion, however when it backs up into the esophagus, it causes irritation. When you swallow, your lower esophageal sphincter (a ring of muscle at the base of one's throat) closes to prevent stomach acid and food from entering the esophagus. The