Slippery Elm Bark

Slippery elm bark contains mucilage, a gel-forming fiber that coats and soothes the GI tract. Widely used in traditional Western herbalism for GERD, IBS, and sore throat. Virtually no published RCTs — evidence is almost entirely traditional/empirical. One small pilot study showed symptom improvement in IBS patients using a multi-herb formula containing slippery elm. The mucilage content may interfere with absorption of other supplements or medications if taken simultaneously. No established RDA/UL.