To date, there is limited rigorous research on the efficacy of slippery elm (Ulmus rubra) in the treatment of GERD. However, traditionally, and in my clinical experience, slippery elm can be quite effective at protecting the esophagus and relieving the burning sensation or pain associated with GERD. Its mucilagenous properties help to protect the esophageal lining and gastrointestinal (GI) tract against increased acidity and ulcers. However, due to concerns around over-harvesting and the slippery elm tree's susceptibility to Dutch-elm disease, I prefer to try other effective mucilagenous botanicals like marshmallow (Althea officinalis) first.
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Slippery elm may be helpful for treating occasional heartburn, also known as acid reflux. It's also considered an herbal remedy for gastroesophageal reflux disease (GERD). Slippery elm contains mucilage, a substance that becomes a slick gel when mixed with water. This coats and soothes the mouth, throat, stomach, and intestine
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