Leaf & Herb · Other

Deglycyrrhizinated Licorice (DGL)

Provisional Strong Scorebotanical

Hermetica Superfood Encyclopedia

Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Deglycyrrhizinated licorice (DGL) contains glycyrrhetinic acid derivatives that enhance gastric mucus production and reduce inflammatory prostaglandin synthesis. DGL supports gastrointestinal healing by strengthening mucosal defense mechanisms and reducing stomach acid irritation.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryLeaf & Herb

GroupOther

Public Score StatusProvisional Strong

Primary KeywordDGL benefits

Deglycyrrhizinated Licorice close-up macro showing natural texture and detail — rich in demulcent, anti-inflammatory, gastroprotective

Deglycyrrhizinated Licorice (DGL) — botanical close-up

Reported Benefits (Provisional)

Supports gastrointestinal health by soothing the stomach lining, which can alleviate symptoms of indigestion and heartburn. This is achieved through its anti-inflammatory properties that reduce irritation. - May help in managing symptoms of peptic ulcers by promoting mucosal defense mechanisms. Studies show a 50% reduction in ulcer size with regular use. - Aids in reducing stress-induced gastric issues by modulating cortisol levels. This helps maintain a balanced digestive environment. - Enhances liver function by promoting detoxification processes. It supports the liver's ability to filter toxins from the bloodstream. - Boosts immune function by increasing the production of lymphocytes. This strengthens the body's defense against infections. - May reduce inflammation in the body by inhibiting pro-inflammatory cytokines. This can lead to improved overall health and reduced chronic disease risk. - Supports respiratory health by soothing irritated airways. This is particularly beneficial for those with chronic respiratory conditions.

Origin & History

Natural habitat

Deglycyrrhizinated Licorice (DGL) is derived from the root of the Glycyrrhiza glabra plant, native to Europe and Asia. The glycyrrhizin compound is removed to reduce potential side effects, leaving beneficial flavonoids and chalcones.

“Used in traditional Chinese and Ayurvedic medicine for its soothing effects on the digestive system. Revered for its sweet flavor and healing properties.”Traditional Medicine

Research Narrative (Provisional)

Studies, including clinical trials, have shown DGL's effectiveness in treating gastric ulcers and reducing acid reflux symptoms. In vitro research supports its anti-inflammatory effects.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Contains flavonoids like liquiritin and isoliquiritin. - Rich in chalcones and glycyrrhizin-free compounds. - Provides essential oils and polysaccharides.

Reported Mechanism (Provisional)

Mechanism of Action

DGL's flavonoids and chalcones stimulate prostaglandin E2 synthesis, which increases protective gastric mucus and bicarbonate secretion. The compound inhibits 15-hydroxyprostaglandin dehydrogenase, prolonging prostaglandin activity that promotes mucosal healing. DGL also reduces inflammatory cytokine production through NF-κB pathway modulation.

Clinical Narrative (Provisional)

Human studies using 380-1140mg DGL daily for 4-12 weeks show significant improvement in dyspepsia symptoms and peptic ulcer healing rates of 60-90%. A randomized controlled trial with 120 participants found DGL as effective as ranitidine for ulcer treatment. However, most studies are small-scale with 30-120 subjects, and larger long-term trials are needed to confirm therapeutic efficacy.

Also Known As

Glycyrrhiza glabraDGLLicorice root extractYashtimadhuGan CaoSweet rootLiquorice

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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