Supplements for Peptic Ulcer: Mastic Gum, DGL, and…

Peptic ulcers are open sores that develop in the stomach lining (gastric ulcers) or the upper portion of the small intestine (duodenal ulcers). The two primary causes are Helicobacter pylori infection and chronic NSAID use, both of which erode the protective mucous barrier separating acid from tissue. While pharmaceutical acid suppression is effective at relieving pain, it does not repair the mucosal defect or address the underlying cause. Targeted supplements can accelerate tissue healing, modulate inflammation, and in some cases directly combat H. pylori — making them valuable adjuncts to standard care.

Understanding the Mucosal Barrier

The stomach secretes a bicarbonate-rich mucous gel roughly 0.5 mm thick that shields epithelial cells from gastric acid. Pepsin, H. pylori virulence factors, and NSAIDs all compromise this gel. H. pylori releases urease (which generates toxic ammonia), proteases that degrade mucus, and cytotoxins that directly damage epithelial cells. Effective supplementation must address multiple points in this cascade: mucous secretion, epithelial cell proliferation, oxidative stress, and bacterial colonization.

Mastic Gum

Mastic gum from Pistacia lentiscus resin has direct bactericidal activity against H. pylori confirmed in multiple in vitro studies and clinical trials. A landmark 2010 study found mastic gum at 1 g daily for 14 days achieved meaningful reductions in H. pylori density with a favorable safety profile. Beyond antibacterial activity, mastic gum inhibits NF-kB, a key inflammatory signaling molecule in gastric tissue. It also demonstrates antioxidant activity that protects mucosal cells from oxidative damage. Typical dosing is 500-1000 mg daily, ideally on an empty stomach.

DGL Licorice

Deglycyrrhizinated licorice works by stimulating the secretion of protective mucus and accelerating mucosal cell turnover. The glycyrrhizin-free extract retains carbenoxolone precursors and flavonoids that have been demonstrated to prolong gastric epithelial cell lifespan. Several controlled studies from the 1970s and 1980s showed DGL comparable to cimetidine (Tagamet) for duodenal ulcer healing, without the hormonal side effects. Dosing is 380-760 mg chewed before meals three times daily. The chewing step is important — salivary enzymes may activate components that enhance mucosal protection.

Zinc Carnosine (Polaprezinc)

Zinc carnosine is approved as a prescription ulcer treatment in Japan under the name Polaprezinc, reflecting a substantial evidence base for gastric mucosal healing. It works by binding to ulcer sites and forming a protective complex, stimulating growth factors that promote epithelial repair, and reducing oxidative stress within gastric tissue. Studies show it accelerates ulcer healing compared to placebo and enhances the efficacy of standard triple therapy for H. pylori. Dosing is typically 75 mg twice daily between meals. It is particularly valuable for NSAID-associated gastric ulcers.

Vitamin C and Oxidative Stress

Gastric vitamin C is significantly depleted in H. pylori-positive individuals. Supplemental vitamin C (500-1000 mg daily) has been shown to reduce gastric oxidative stress markers, modestly inhibit H. pylori growth, and improve eradication rates when added to antibiotic regimens. One mechanism is through reduction of N-nitroso compound formation in the stomach, which is relevant because chronic H. pylori infection plus nitrosamine exposure increases gastric cancer risk. Vitamin C supplementation thus serves both healing and preventive functions.

Aloe Vera Inner Leaf Gel

Decolorized, anthraquinone-free aloe vera gel has anti-inflammatory and mucosal-protective properties relevant to peptic ulcer. It contains acemannan and other polysaccharides that stimulate mucus production and have been shown in animal studies to accelerate gastric ulcer healing. A small human trial found acemannan-rich aloe vera gel reduced gastric acid output and improved ulcer symptoms. Dosing is typically 100-200 ml of inner leaf gel (not the whole-leaf preparation, which contains laxative anthraquinones) before meals.

Probiotics as Adjuncts

Lactobacillus reuteri DSM 17938 and Saccharomyces boulardii CNCM I-745 have the strongest evidence for reducing H. pylori density and mitigating antibiotic side effects during eradication therapy. Probiotics do not eradicate H. pylori independently but increase eradication rates by 10-15% when added to triple therapy and significantly reduce diarrhea and other GI side effects. They also support microbiome recovery after antibiotic-induced dysbiosis, which matters for long-term mucosal immune function.

FAQ

Can I treat a peptic ulcer with supplements alone without seeing a doctor? No. Confirmed or suspected peptic ulcer requires medical evaluation and testing for H. pylori. Untreated ulcers can progress to perforation or bleeding, which are surgical emergencies. Supplements are best used to enhance and support medical treatment, not replace it.

How long does it take for a peptic ulcer to heal with supplementation? Gastric ulcers typically require 8-12 weeks to heal; duodenal ulcers heal faster, often within 4-6 weeks. Supplements like zinc carnosine and DGL can accelerate this timeline but do not eliminate the need for adequate treatment duration.

Should I stop NSAIDs to allow ulcer healing? If medically possible, yes. Continued NSAID use substantially slows mucosal healing. If NSAIDs are medically necessary, zinc carnosine and misoprostol (a prescription prostaglandin) are particularly effective at protecting the gastric mucosa.

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Supplements for Peptic Ulcer: Mastic Gum, DGL, and Zinc Carnosine