Supplement · Gut & digestive health
Marshmallow root
Also known as: Althaea officinalis
A demulcent herb for digestive and throat comfort, with mainly traditional support.
- Evidence
- Silver· human data
- Sources cited
- 1
- Last reviewed
- 22 July 2026
Marshmallow root, like slippery elm, is high in soothing mucilage and is used traditionally for irritated throats, coughs and digestive-tract comfort.
The demulcent mechanism is reasonable, but rigorous clinical trials are scarce and its reputation rests mainly on long traditional use. It is generally well tolerated and, being a fibre, may slow absorption of medicines taken alongside it.