Evidence-Based Benefits
- Mucosal protection — marshmallow root mucilage forms a bioadhesive gel that adheres to epithelial surfaces, providing sustained protection against acid and irritants (Al-Snafi, 2013)
- Anti-inflammatory effects — aqueous extracts of marshmallow root inhibited complement activation and reduced inflammatory mediators in vitro (Scheffer et al., 2005)
- GERD symptom relief — a 2017 pilot study found a herbal formula containing marshmallow root significantly reduced heartburn symptoms compared to placebo (Tewari et al., 2017)
- Antitussive activity — EMA monograph recognizes marshmallow root as a traditional herbal medicine for dry coughs and mild gastric complaints based on long-standing use