Slippery Elm

Herb

Ulmus rubra inner bark used as a demulcent in oral powders and multi-herb digestive products. Human evidence is sparse and does not isolate slippery elm from the other dietary or botanical components.

Pharmacokinetic model

A route-level PK model for slippery elm is being prepared from published data. Dosing references, studies, and documented interactions are below; the app catalog is updated as models are validated.

Key facts

Category: Herb
Suggested cadence: once daily

Research behind this entry

Herbal formula improves upper and lower gastrointestinal symptoms and gut health in Australian adults with digestive disorders Ried K, Travica N, Dorairaj R, Sali A · Nutrition Research, 2020 DOI
Study of a multi-herb digestive formula that included slippery elm. Because the intervention contained several ingredients, it cannot establish slippery-elm monotherapy efficacy.
Medical nutrition therapy as a potential complementary treatment for psoriasis--five case reports Brown AC, Hairfield M, Richards DG, McMillin DL, Mein EA, Nelson CD · Alternative Medicine Review, 2004
Five uncontrolled case reports used a broad medical-nutrition program containing multiple dietary changes and supplements. They do not isolate slippery elm or provide controlled efficacy evidence.

2 published studies referenced in the app, each with a plain-language summary.