What is the recommended dose of Slippery Elm?

- **Look for:** Inner bark powder (Ulmus rubra); 400-500mg per capsule; or bulk powder for mixing; sustainably harvested (slippery elm is overharvested) - **Avoid:** Products using outer bark; sust...

Is Slippery Elm safe to take daily?

Slippery Elm is rated "Generally Safe" based on clinical evidence. Always consult your healthcare provider before starting any supplement.

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Ingredient Research

Graded against 173,636 supplements + 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, NIH DSLD

Slippery Elm

MODERATE EVIDENCEBotanicalLast updated

AVELOR SUMMARY

Slippery elm is a demulcent (mucilage-containing herb) that works similarly to marshmallow root — it forms a protective gel coating over irritated GI mucous membranes. The inner bark contains 30-40% mucilage by weight. Our research shows it has FDA GRAS status and a 200-year history in American herbalism for sore throats, GERD, IBS, and IBD. Clinical evidence is surprisingly thin for such a widely used herb — only ONE small published clinical study (IBS bowel improvement). The mechanism is primarily physical (gel coating) rather than pharmacological.

WHAT IT DOES

Same mechanism as marshmallow root: inner bark mucilage (hexose sugars polymerized into a branched polysaccharide gel) absorbs water and forms a bioadhesive gel that: (1) physically coats inflamed mucous membranes (esophageal, gastric, intestinal); (2) protects tissue from acid, enzymes, and mechanical irritation; (3) stimulates nerve endings in the GI tract → reflex increase in mucin secretion → enhanced endogenous mucosal protection; (4) mild prebiotic — polysaccharides fermented by colonic bacteria to SCFAs. The coating is MECHANICAL, not pharmacological.

OPTIMAL DOSAGE

Look for: Inner bark powder (Ulmus rubra); 400-500mg per capsule; or bulk powder for mixing; sustainably harvested (slippery elm is overharvested)
Avoid: Products using outer bark; sustainably uncertain sources; tea-only preparations
Minimum effective dose: 400mg 3x/day
Third-party tested brands: Nature's Way, NOW Foods, Thayers (lozenges)

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SAFETY PROFILE

Moderate Interactions

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Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:

Not medical advice. Based on published clinical research and systematic reviews.

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