Slippery Elm (Ulmus rubra): Benefits for Digestion, Throat, Skin, and Safety

Active Constituent

Mucilage (polysaccharide complex) → hydrates to viscous gel; coats mucosa.

Evidence-Supported Uses

• GERD / reflux esophagitis: Gel barrier reduces acid contact; small RCTs show symptom improvement.
• Sore throat / laryngitis: Demulcent lozenges or tea—soothes, reduces cough reflex.
• IBS-D / inflammatory diarrhea: Stool bulking, reduced urgency (preliminary data).
• Topical: Poultice for minor wounds, burns, dermatitis—anti-inflammatory, protective.

Preparation & Dosing

• Powdered inner bark: 1 tsp in 8 oz hot water → steep 5 min; drink 3×/day.
• Lozenges: 200–400 mg mucilage per lozenge; q2–4h.
• Capsules: 400–500 mg 3×/day with full glass water.

Precautions

• May slow absorption of oral drugs—take 1 hr apart.
• Pregnancy/lactation: insufficient data; avoid therapeutic doses.
• Allergy to Ulmaceae (elm family) possible.