Slippery Elm: What It Is and How to Use It
Slippery elm (Ulmus rubra) is the inner bark of a North American elm tree, famous for the soothing mucilage it forms when mixed with water and traditionally used to comfort the throat and digestive tract. You'll find it at William's Natural Foods, 12249 San Pablo Ave, Richmond, CA 94805.
Available in Bulk
We carry slippery elm bark in our bulk herb section, so you can grab the exact amount you want — from a spoonful to try it as a tea to a full bag for regular use. Our staff can help you find it and explain the different forms.
What We Carry
We stock slippery elm inner bark in powdered form, which blends easily into warm water or tea, as well as in cut and sifted form for those who prefer to brew it as an infusion.
Frequently Asked Questions
What is mucilage, and why does it matter?
Mucilage is a gel-like substance the inner bark releases when it meets water — it's what gives slippery elm its name and its signature slippery texture. This soothing, coating quality is exactly why the bark has been traditionally used for throat and digestive comfort.
How is slippery elm usually prepared?
The traditional preparation is simple: the powder is stirred into warm water or herbal tea to make a soothing drink. It has also been a classic ingredient in throat lozenges for generations. The cut bark can be simmered gently to make a mucilaginous infusion.
What does slippery elm taste like?
It has a very mild, slightly sweet, bland flavor that most people find inoffensive — which is part of why it blends so easily into teas. It doesn't have the strong taste of many medicinal herbs, so it pairs well with honey, cinnamon, or other flavorings.
Is slippery elm harvested sustainably?
This is worth knowing: slippery elm has faced pressure from wild harvesting, since stripping the bark can harm or kill the tree. Look for bark from responsible sources, and consider it a herb to use thoughtfully rather than wastefully.
Did you know? Slippery elm appears on United Plant Savers' "At-Risk" list of native medicinal plants considered vulnerable to overharvesting in the wild (source: United Plant Savers).
Visit William's Natural Foods at 12249 San Pablo Ave, Richmond, CA — open Monday through Friday 9 AM to 7 PM, Saturday 9 AM to 6 PM, and Sunday 10 AM to 5 PM. Our staff are happy to help you find slippery elm and answer your questions.
This guide is for general information only and is not medical advice. Talk to your doctor or a qualified health professional about any health questions.