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Acid reflux occurs when stomach acid, essential for digestion, moves back up into the esophagus. This reverse action can cause a wide range of symptoms, including gas, a bitter taste in the mouth, and heartburn. Some people develop more serious complications over time, as well, including significant damage to the esophagus and even cancer. In most cases, the symptoms of acid reflux are easy to treat.

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1. Obesity

Obesity is one of the leading causes of acid reflux. Improper functioning of the esophagus causes GERD (gastroesophageal reflux disease). Excessive food intake and a higher percentage of body fat may prevent the lower esophageal sphincter from closing properly, which allows acid to back up out of the stomach and into the esophagus.

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