13) Acid reflux
Magnesium deficiency causes failure of the pyloric sphincter of the stomach which results in incomplete emptying of the stomach. Food in the stomach remains there for a prolonged period of time which causes excessive pressure on the lower esophageal sphincter. After a certain limit, the lower esophageal sphincter opens in an upward direction causing acid reflux. The patient presents with a burning sensation chest and a sour taste in their mouth. Magnesium deficiency can also increase acidity in the stomach which contributes to the development of gastroesophageal reflux disease.