What is the recommended dosage for Slippery Elm?

General: 400-800 mg bark powder 3 times daily, or 5 mL tincture 3 times daily; Gerd Support: Mix 1-2 tablespoons powder in water, drink before meals; Throat Soothing: Lozenges as needed

What are the side effects of Slippery Elm?

Potential side effects include: May slow absorption of oral medications due to mucilage coating (space 1-2 hours), Rare allergic reactions (contact dermatitis reported), Mild nausea in some individuals, Potential for contaminants in unregulated products.

What is slippery elm and how does it work for gut health?

Slippery elm (Ulmus rubra) is a tree whose inner bark contains mucilage, a gel-forming fiber that becomes slick and soothing when mixed with water. This mucilage coats and protects the lining of the esophagus, stomach, and intestines, potentially reducing irritation and inflammation. While it has a long history of traditional use for digestive complaints, modern clinical studies are limited but supportive of its mucosal-protective properties.

What is the recommended dosage of slippery elm?

Traditional dosages are 400-800 mg of slippery elm bark powder 3 times daily, or 2-4 tablespoons of powder mixed with water to form a paste or gruel. For soothing the upper GI tract, it is often taken between meals or before bed. Slippery elm lozenges are also available for esophageal and throat soothing. There is no standardized clinical dosage due to limited controlled trials.

Are there side effects or interactions with slippery elm?

Slippery elm is generally considered safe with rare side effects when used at recommended doses. Its mucilaginous nature may slow the absorption of oral medications, so it should be taken 1-2 hours apart from other medicines. Some individuals may experience mild allergic reactions. Slippery elm is classified as a threatened species in some regions, so sustainably sourced products are recommended.

Slippery Elm

herb

Also known as: Ulmus rubra, Ulmus fulva, Red Elm, Indian Elm, Moose Elm

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About

Slippery elm (Ulmus rubra) inner bark contains mucilage polysaccharides that form a soothing protective gel when mixed with water. This gel may coat and protect the esophageal and gastric mucosa, providing temporary relief from irritation. It may also help stimulate mucus secretion from goblet cells and contains antioxidant tannins. While traditionally used for centuries, clinical trial data remains very limited.

How It Works

Mucilage polysaccharides form a protective gel coating the esophageal and gastric mucosa on contact; stimulates mucus secretion from goblet cells via mechanoreceptor activation; antioxidant tannins reduce mucosal oxidative stress; demulcent action provides physical barrier against acid irritation.

Evidence For Conditions

Condition	Grade	Studies	Participants
Irritable Bowel Syndrome (IBS)	D	1	40	View →
Gastroesophageal Reflux Disease (GERD)	D	0	--	View →

Side Effects

May slow absorption of oral medications due to mucilage coating (space 1-2 hours)
Rare allergic reactions (contact dermatitis reported)
Mild nausea in some individuals
Potential for contaminants in unregulated products

Drug & Supplement Interactions

May reduce absorption of oral medications by coating the GI tract (space 1-2 hours from all oral meds)
No significant pharmacological interactions known

Always inform your healthcare provider about all supplements you take.

Related Ingredients

Berberine Curcumin Deglycyrrhizinated Licorice (DGL) Ginger Peppermint Oil

Quick Facts

Dosage: General: 400-800 mg bark powder 3 times daily, or 5 mL tincture 3 times daily; Gerd_Support: Mix 1-2 tablespoons powder in water, drink before meals; Throat_Soothing: Lozenges as needed
Forms: powder capsule lozenge tea tincture
Natural Sources: Inner bark of the slippery elm tree (Ulmus rubra, native to North America)
Upper Limit: Not established; traditional use up to 2,400 mg/day bark powder
Best Time: Before meals or between meals; space 1-2 hours from medications

Evidence Summary

Irritable Bowel Syndrome (IBS) D

Gastroesophageal Reflux Disease (GERD) D

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.