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Slippery Elm

herbs

Slippery elm is a traditional herbal remedy derived from the inner bark of the Ulmus rubra tree, traditionally used to soothe and protect mucous membranes throughout the digestive tract. It contains mucilage, a gel-like substance that coats the throat and gastrointestinal tract, making it popular for respiratory and digestive support.

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Benefits

Soothes inflamed throat and cough relief
Protects and coats the oesophagus and stomach lining
Supports digestive comfort and bowel regularity
May reduce symptoms of acid reflux and heartburn
Promotes overall mucous membrane health

Dosage

Typical Dose

1-2 grams (approximately 1-2 teaspoons) per dose

Upper Limit

4-6 grams daily divided into multiple doses

Timing

30 minutes before or 2 hours after meals, or as needed for throat soothing

Forms & Bioavailability

Powdered bark

high

Capsules

high

Lozenges

high

Tea/decoction

high

Side Effects

Mild nausea or stomach upset in sensitive individuals
May cause drowsiness in some people
Potential allergic reactions in those sensitive to elm trees

Interactions

May slow absorption of oral medications due to mucilage coating; separate dosing by 2 hours
Could reduce effectiveness of diabetes medications if absorbed more slowly

Research Summary

Slippery elm has been used traditionally for centuries, though clinical evidence remains limited. Some small studies suggest it may help reduce cough and soothe throat irritation, but larger randomised controlled trials are needed to establish efficacy for gastrointestinal conditions. The traditional use is well-supported by herbalists, though the scientific evidence base is moderate.

The Bottom Line on Slippery Elm

Slippery Elm is moderately researched with promising but sometimes mixed evidence.It is most commonly used for soothes inflamed throat and cough relief and protects and coats the oesophagus and stomach lining. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.

About Our Research

This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.

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Disclaimer: This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement, especially if you have existing health conditions or take medication.

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