Marshmallow Root (Supplement) for Acid Reflux And Heartburn

Research suggests that marshmallow root (Althaea officinalis) may offer gastroprotective benefits relevant to acid-related gastrointestinal conditions, with both available studies pointing in a supportive direction. Studies indicate that aqueous extracts of the plant demonstrated significant antiulcerogenic and gastroprotective activity in rat models of gastric ulceration, including ethanol-induced ulcer models. However, it is important to note that the current body of evidence consists entirely of animal studies, with no randomized controlled trials or clinical studies in humans identified, which represents a meaningful limitation when considering relevance to human acid reflux or heartburn. The findings are promising but preliminary, and further research in human populations would be needed to draw firmer conclusions about efficacy.