Slippery Elm Bark: Nature’s Gentle Relief for Digestion

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Slippery elm bark has been a staple in herbal remedies for generations. It is prized in traditional medicine for its ability to ease various digestive woes. This natural supplement comes from the inner bark of the slippery elm tree. It’s often turned to for relief from common issues such as an upset stomach, heartburn, and other digestive discomforts.

What Is Slippery Elm Bark?

Slippery elm bark comes from the Ulmus rubra tree, a species native to North America. The inner bark of this tree is known for its gel-like quality when mixed with water. This unique characteristic is what gives slippery elm its name; the “slippery” part refers to the smooth, slippery consistency it takes on when moistened.

Historically, Native Americans used slippery elm bark to treat wounds and gastrointestinal issues. The bark contains various nutrients, including fiber, calcium, and amino acids, which contribute to its health benefits. When consumed, the bark coats and soothes the mouth, throat, stomach, and intestines, making it a gentle aid for digestive health.

In modern wellness practices, slippery elm bark is available in various forms, such as powders, capsules, and teas. It is valued for its ability to help with sore throats, coughs, and digestive problems by forming a protective layer along the affected areas. Its role in digestive health is particularly noted, with many turning to it for a natural approach to soothing an irritated digestive tract.

However, slippery elm is classified as endangered by multiple plant preservation-focused organizations such as the United Plant Savers, and thus, substitutes should be considered in clinical treatment. [PMC6065514]

What Are the Benefits of Slippery Elm?

  • Manages GERD symptoms: Slippery elm bark can coat the esophagus, reduce acidity by neutralizing excess stomach acid, promote digestive health, and improve digestion to prevent discomfort and acid reflux that contribute to GERD. [PMC10458865]
  • Leaky Gut: Slippery Elm may strengthen the gut lining by promoting the secretion of mucus, which could be beneficial for those dealing with leaky gut syndrome, where the intestinal barrier becomes permeable.
  • Relieves sore throat: Due to its mucilage content, slippery elm bark can ease a sore throat. This makes it a common ingredient in lozenges and throat teas. [PMC5483044]
  • Helps with digestive issues: It’s used to relieve gastrointestinal conditions such as constipation, diarrhea, and irritable bowel syndrome (IBS). The mucilage can help regulate bowel movements and alleviate both diarrhea and constipation.
  • Soothes the digestive tract: Slippery elm bark contains a substance called mucilage that becomes a slick gel when mixed with water. This gel can coat and calm the lining of the throat, stomach, and intestines. There has been interest in studying it for Inflammatory Bowel Disease because of its anti-inflammatory effects. [PMC4204705]

Is Slippery Elm Bark Safe?

Slippery elm bark is generally considered safe for most people when taken in appropriate amounts. It’s a gentle supplement that works by forming a soothing film over mucous membranes, making it a mild choice for digestive support. Unlike some other herbal remedies that can cause strong side effects or interact with medications, slippery elm bark has a more moderate profile, and adverse reactions are rare. However, as with any supplement, it’s wise to consult with a healthcare professional before starting any new regimen, especially for those who are pregnant, nursing, or taking other medications, to ensure it fits safely within their health plan.

Medication Interactions with Slippery Elm Bark

  • Medications taken by mouth (Oral drugs):
    • Interaction: Slippery elm bark may coat the digestive system, which could delay or reduce the absorption of oral medications.
  • Activated charcoal:
    • Interaction: Both slippery elm and activated charcoal can absorb substances in the stomach and intestines. Taking slippery elm with activated charcoal might decrease the effectiveness of charcoal.
  • Digoxin (Lanoxin):
    • Interaction: There is concern that slippery elm could interfere with the absorption of digoxin, affecting its levels in the blood.
  • Diuretics (water pills):
    • Interaction: Because slippery elm might affect electrolyte levels due to its high mucilage content, it could potentially alter the effectiveness of diuretics.
  • Medications for diabetes (Antidiabetes drugs):
    • Interaction: Slippery elm might lower blood sugar levels. If taken with diabetes medications, it might increase the risk of blood sugar becoming too low.
  • Medications that reduce stomach acid (Antacids):
    • Interaction: Slippery elm may change the rate at which the stomach empties, potentially reducing the effectiveness of antacids.

Supplement Interactions with Slippery Elm Bark

  • Minerals (such as iron, zinc, magnesium, and potassium supplements):
    • Expected Interaction: Slippery elm bark might bind with certain minerals in the gut, reducing their absorption and effectiveness.
  • Other herbal supplements with high mucilage content (like aloe vera and marshmallow root):
    • Expected Interaction: Used concurrently with slippery elm, these could compound the effects on the digestive system, potentially leading to an overly coated stomach and intestines, which could impact the absorption of nutrients and other supplements.
  • Fiber supplements (such as psyllium or glucomannan):
    • Expected Interaction: Combining slippery elm with other high-fiber supplements might alter the digestive system’s motility, potentially leading to gastrointestinal blockage if not enough water is consumed.
  • Fat-soluble vitamin supplements (such as vitamins A, D, E, and K):
    • Expected Interaction: Slippery elm’s fiber content may bind with fat-soluble vitamins, potentially decreasing their absorption.

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Slippery Elm Bark 400 mg by Nature’s Way

The bark in this product is sourced from slippery elm trees, which are native to North America and can grow to be over 200 years old. They’ve been used for centuries by Native Americans. We partner with suppliers who harvest the bark so the trees can grow back naturally, rather than stripping the bark, which can damage the trees and limit their longevity. Nature’s Way Slippery Elm Bark has traditionally been used to help soothe the gastrointestinal tract.*

Suggested Use:
Take 4 capsules three times daily with warm water between mealtimes.


Serving Size: 4 Capsules

Amount Per Serving
Dietary Fiber
 … 1g
Slippery Elm … 1.6g* (bark)

Slippery Elm Powder (400 g) by Vital Nutrients

Slippery Elm Bark Powder is derived from a species of elm native to eastern North America, with a long history of traditional use.* Slippery Elm inner bark is rich in mucilage which helps stimulate the production of mucus, a component of the gastrointestinal tract’s protective lining.* Its beneficial properties help support mucus membrane surfaces in all areas of the body.* Slippery Elm Bark Powder particularly helps comfort and soothe the gastrointestinal tract, and may help maintain regular bowel movements.* Vital Nutrients also offers Slippery Elm Bark Powder in the combination formulas GI Repair Powder and Whole Fiber Fusion.

  • supports mucus membranes throughout the body*
  • promotes mucus production in the gastrointestinal tract lining*

Take 1 rounded teaspoon, 2 times daily in water, juice or other beverage, or as directed by a healthcare practitioner

Serving Size: 1 rounded teaspoon (2.5 grams)

Amount Per Serving
Slippery Elm Bark Powder … 2500mg (Ulmus fulva)

Food First!

Although this article discusses supplements in detail, don’t forget that we are absolutely committed to the “Food First” approach to nutrition. When it comes to your health, the totality of your eating habits far surpasses the impact of individual nutrients or any single supplement you consume. Even though this article doesn’t delve into the broader picture of your overall diet, it’s crucial to keep this element at the forefront of our minds. Your food needs to provide all the vitamins, minerals, fiber, and phytochemicals to nourish your body systems down to the cellular level.

Food choices, rather than supplements, are the most critical factors for a healthy gut microbiome. These trillions of tiny inhabitants in your gut affect your brain waves; they orchestrate your immune system. They possess the power to create molecules that can switch genes on or off and are even capable of synthesizing neurotransmitters. Opting for organic foods and steering clear of plastic packaging (including those labeled BPA-free) is a smart move to limit toxin exposure. The sum of all these parts leads to a powerful conclusion: the ultimate key to your health lies in the quality and balance of the food you consume. Supplements are secondary.

“To Sum It Up”

Slippery elm bark carries a legacy of healing that spans centuries, offering a natural, gentle way to support digestive health. Its rich mucilage content coats and calms the digestive tract, providing relief for those experiencing an upset stomach, heartburn, and other gastrointestinal discomforts. Beyond soothing the digestive system, it also offers benefits for sore throats and minor wounds, tapping into the body’s own healing capabilities. Embracing slippery elm bark as part of a health regimen could be a step toward harmonizing with nature’s own remedies. Whether sipped as a tea or taken as a supplement, it stands as a testament to the gentle, supportive care found in the world of herbal wellness.


This Article is Not a Substitute for Medical Advice

Dietary supplements are not designed to diagnose, treat, cure, or prevent any disease. The Supplement Sciences website seeks to provide comprehensive access to the most relevant supplement information along with convenient online ordering. We do not provide medical advice and cannot guarantee that every product suggested is completely without risk. Since each person is unique in their health history and medication use, it is important to discuss supplements with your personal physician. Specifically, pregnant women and individuals being treated for cancer or liver or kidney problems must consult their physician about every nutritional supplement they plan to take. People taking medications for the treatment of HIV or with a history of organ transplant must not take supplements without consulting with their physician.


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