Slippery elm

Despite limited research, slippery elm has been used in herbal remedies for centuries to treat a variety of illnesses, including GERD symptoms. This tree extract thickens the layer of mucous lining the stomach, says Dr. Blum, creating a stronger barrier against acid.

"[Slippery elm] is a demulcent that offers a coating or protective layer to the tissue [of the stomach]," Dr. Sierpina says. "The way slippery elm has traditionally been prescribed is a couple tablespoons in water after meals and at bedtime."