Why Should Marshmallow Root And Slippery Elm Be In Your Leaky Gut Supplement?

Marshmallow root and slippery elm are highlighted ingredients in gut wellness, especially when it comes to leaky gut (also known as increased intestinal permeability). Steeped in a history of traditional use, these botanicals bring more than just anecdotal evidence to the table. They have proven their mettle in modern research as effective aids for digestive health. This post isn’t just about praising these two ingredients in isolation; it’s also about understanding their role within a holistic approach to gut health, and how, when combined with other supportive ingredients, their benefits are amplified.

Marshmallow Root: A Gentle Healer

Marshmallow root, derived from the plant Althaea officinalis L., is celebrated for its soothing properties on the gastrointestinal tract. Its high mucilage content forms a protective layer in the gut, offering relief from irritation and inflammation (1). This botanical has been shown to improve intestinal barrier function and reduce inflammation (1). Moreover, marshmallow root may enhance the efficacy of probiotics, a key component in maintaining a healthy gut microbiome (1).

Slippery Elm: The Digestive Soother

Like marshmallow root, slippery elm bark has been revered for its role in managing digestive issues. It also owes some of its effects to its mucilage. Slippery elm coats the digestive tract and encourages mucus secretion which may help to protect the intestinal lining (2). It also helps combat inflammation in the gut tissue, a common problem in conditions like inflammatory bowel diseases (3). Furthermore, slippery elm is known for its antioxidant effects, which can be particularly beneficial in alleviating symptoms of digestive disorders (3).

Combining Forces for Optimal Gut Health

While marshmallow root and slippery elm offer significant benefits individually, their efficacy can be enhanced when combined with other gut-supporting ingredients. This is where a comprehensive supplement like Gutsyl™ by Approved Science® comes into play. Gutsyl™ not only includes marshmallow root and slippery elm but also incorporates other key ingredients like L-glutamine, turmeric, and quercetin, which work synergistically to support gut integrity and function.

L-glutamine is an amino acid crucial for repairing the intestinal lining and has shown effectiveness in improving gut permeability (4). Turmeric, with its active compound curcumin, offers strong anti-inflammatory and antioxidant benefits, helping to heal the gut lining and reduce inflammation (5). Similarly, quercetin enhances the gut barrier function and is known for its anti-inflammatory properties (6).


Marshmallow root and slippery elm are more than just standalone ingredients in gut health; they are part of a larger, integrative approach to digestive wellness. In combination with other potent ingredients, such as those in Gutsyl™, they offer a holistic solution to support and maintain a healthy, functioning gut. This synergy of natural ingredients represents a progressive step in dietary supplements, targeting gut health from multiple angles for comprehensive care.

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