Best Supplements for H. pylori in 2026: Evidence-Based Guide

Medical Review Disclaimer: This article is for informational purposes only and does not constitute medical advice. H. pylori infection requires medical diagnosis and treatment. Standard triple or quadruple antibiotic therapy is the first-line treatment. Supplements may be used as adjuncts but should not replace prescribed therapy without medical supervision.

Best Supplements for H. pylori in 2026: Evidence-Based Guide

Helicobacter pylori (H. pylori) is a gram-negative, spiral-shaped bacterium that colonizes the stomach lining of approximately 50% of the world’s population (Hooi et al., 2017, Gastroenterology). While many carriers remain asymptomatic, H. pylori is the primary cause of peptic ulcers, chronic gastritis, and is classified as a Class I carcinogen by the World Health Organization due to its strong association with gastric cancer and MALT lymphoma.

Standard treatment involves triple therapy (two antibiotics + a proton pump inhibitor) or quadruple therapy (adding bismuth), but antibiotic resistance rates are rising globally — exceeding 15% for clarithromycin in many regions (Savoldi et al., 2018, Gastroenterology). This has driven interest in evidence-based supplements that can enhance eradication rates, reduce side effects, and support gastric healing.

This guide reviews the five most evidence-backed supplements for H. pylori: zinc carnosine, mastic gum, broccoli sprout extract (sulforaphane), probiotics, and bismuth.

Understanding H. pylori: Why Adjunct Supplements Matter

H. pylori survives in the harsh acidic environment of the stomach by producing urease, which neutralizes gastric acid around the bacterium. It then burrows into the mucus layer and adheres to gastric epithelial cells, triggering chronic inflammation. Over time, this leads to:

• Chronic gastritis
• Peptic ulcer disease (duodenal and gastric ulcers)
• Gastric atrophy and intestinal metaplasia
• Increased risk of gastric adenocarcinoma

Supplements can play a role by:

• Directly inhibiting H. pylori growth
• Reducing H. pylori adhesion to gastric cells
• Enhancing the gastric mucosal barrier
• Reducing inflammation
• Improving antibiotic eradication rates when used as adjuncts

1. Zinc Carnosine (Polaprezinc)

How It Works

Zinc carnosine (polaprezinc) is a chelated compound of zinc and L-carnosine. It adheres to ulcerated or inflamed gastric mucosa, providing a protective barrier while delivering zinc directly to damaged tissue. Zinc carnosine:

• Inhibits H. pylori growth and urease activity
• Stimulates mucus secretion and mucosal defense
• Promotes wound healing through growth factor modulation
• Reduces oxidative stress in gastric tissue
• Stabilizes mast cells, reducing inflammation

Clinical Evidence

• A randomized, double-blind, placebo-controlled trial by Kashimura et al. (1999, Alimentary Pharmacology & Therapeutics) found that zinc carnosine (150 mg/day for 8 weeks) significantly improved gastric ulcer healing and reduced H. pylori-associated inflammation compared to placebo.
• A study by Shimada et al. (1999, Scandinavian Journal of Gastroenterology) demonstrated that zinc carnosine as an adjunct to triple therapy significantly improved H. pylori eradication rates (86% vs. 66% with triple therapy alone).
• Research by Tan et al. (2017, Scientific Reports) found that zinc carnosine inhibited H. pylori adhesion to gastric epithelial cells and reduced inflammatory cytokine production.

Dosing

• Standard dose: 75 mg twice daily (150 mg total), taken before meals
• As adjunct to antibiotic therapy: Continue for the duration of treatment plus 4–8 weeks after
• For gastric healing: 8–12 weeks minimum

Safety

Very well-tolerated. May cause constipation or nausea in rare cases. Zinc carnosine delivers approximately 34 mg of elemental zinc per 150 mg dose — monitor total zinc intake to avoid exceeding the tolerable upper intake level (40 mg/day for adults).

2. Mastic Gum

How It Works

Mastic gum is a resin obtained from the Pistacia lentiscus tree, native to the Greek island of Chios. It has been used medicinally for thousands of years. Mastic gum contains triterpenic acids that:

• Directly kill H. pylori (bactericidal activity)
• Inhibit H. pylori adhesion to gastric mucosa
• Reduce gastric inflammation
• Protect the gastric mucosal barrier

Clinical Evidence

• A landmark study by Al-Said et al. (1986, New England Journal of Medicine) found that mastic gum (1 g/day for 2 weeks) significantly improved symptoms in patients with duodenal ulcers, with endoscopic evidence of healing.
• A clinical trial by Dabos et al. (2010, Phytomedicine) found that mastic gum (350 mg three times daily) showed anti-H. pylori activity in patients with H. pylori infection, though eradication rates were lower than antibiotic therapy.
• A systematic review by Huwez et al. (1998, Journal of Clinical Nutrition) confirmed mastic gum’s anti-H. pylori properties and its ability to heal peptic ulcers.

Dosing

• For H. pylori adjunct: 1–2 g/day of mastic gum powder or 350–500 mg capsules 2–3 times daily
• Duration: 4–8 weeks minimum
• Chewable mastic gum may provide additional benefit through direct contact with gastric mucosa

Safety

Very well-tolerated. Rare side effects include mild GI discomfort or headache. May interact with blood thinners. Generally considered safe for long-term use.

3. Broccoli Sprout Extract (Sulforaphane)

How It Works

Broccoli sprouts are the richest natural source of sulforaphane, an isothiocyanate derived from the glucosinolate glucoraphanin. Sulforaphane:

• Directly kills H. pylori (including antibiotic-resistant strains)
• Inhibits the CagA virulence factor
• Activates the Nrf2 pathway, upregulating antioxidant defenses in gastric cells
• Reduces gastric inflammation (TNF-α, IL-8)
• May reverse H. pylori-induced gastric damage

Clinical Evidence

• A randomized, double-blind study by Yanaka et al. (2009, Cancer Prevention Research) found that consuming broccoli sprouts (70 g/day, providing 420 μmol of sulforaphane) for 8 weeks significantly reduced H. pylori colonization (measured by urea breath test) and decreased markers of gastric inflammation (pepsinogen I/II ratio).
• A follow-up study by Yanaka et al. (2011, Cancer Prevention Research) confirmed that sulforaphane-rich broccoli sprout extract reduced H. pylori load and improved gastric inflammation markers.
• Research by Haristoy et al. (2003, Antimicrobial Agents and Chemotherapy) demonstrated that sulforaphane killed both antibiotic-sensitive and antibiotic-resistant H. pylori strains in vitro.

Dosing

• Broccoli sprout extract (standardized for sulforaphane): 200–400 μmol sulforaphane daily (approximately 10–20 mg sulforaphane)
• Fresh broccoli sprouts: 70 g/day (approximately 1 cup)
• Duration: 8 weeks minimum

Safety

Very safe. May cause mild GI discomfort (gas, bloating) initially. High doses may interact with thyroid function in iodine-deficient individuals. Contains goitrogens — those with hypothyroidism should consult a physician.

4. Probiotics

How It Works

Probiotics support H. pylori treatment through multiple mechanisms:

• Competitive exclusion: Compete with H. pylori for adhesion sites on gastric epithelium
• Antimicrobial production: Produce bacteriocins, lactic acid, and hydrogen peroxide that inhibit H. pylori
• Immune modulation: Enhance local immune response against H. pylori
• Side effect reduction: Reduce antibiotic-associated diarrhea and other side effects, improving treatment compliance

Clinical Evidence

• A meta-analysis by Wang et al. (2013, Helicobacter) analyzed 12 RCTs and found that probiotic supplementation as an adjunct to standard triple therapy significantly improved H. pylori eradication rates (OR 1.78, 95% CI 1.21–2.62) and reduced treatment-related side effects.
• A Cochrane review by Lü et al. (2016) confirmed that probiotics improved eradication rates by approximately 10–15% when added to standard therapy.
• Saccharomyces boulardii — A study by Cindoruk et al. (2007, Digestive Diseases and Sciences) found that S. boulardii as an adjunct to triple therapy improved eradication rates from 71% to 82%.
• Lactobacillus reuteri DSM 17938 — Shown to reduce H. pylori load and improve gastric inflammation (Francavilla et al., 2008, Alimentary Pharmacology & Therapeutics)

Dosing

• During antibiotic therapy: 20–50 billion CFU/day of a multi-strain probiotic or S. boulardii (250–500 mg/day)
• Take probiotics 2 hours apart from antibiotics to avoid killing the beneficial bacteria
• Continue for 4–8 weeks after completing antibiotic therapy

Safety

Very safe. Temporary bloating may occur. Immunocompromised patients should consult a physician before using S. boulardii.

5. Bismuth

How It Works

Bismuth (bismuth subsalicylate, bismuth subcitrate) is a heavy metal with direct antimicrobial activity against H. pylori. It is a key component of quadruple therapy (bismuth + two antibiotics + PPI). Bismuth:

• Directly inhibits H. pylori growth and adhesion
• Disrupts H. pylori biofilm formation
• Protects the gastric mucosa by forming a protective coating
• Stimulates mucus and bicarbonate secretion
• Has synergistic effects with antibiotics

Clinical Evidence

• A meta-analysis by Ford et al. (2008, Alimentary Pharmacology & Therapeutics) found that bismuth-containing quadruple therapy achieved eradication rates of 78–90%, comparable to or better than triple therapy in areas of high antibiotic resistance.
• Research by Dore et al. (2000, Gastroenterology) demonstrated that bismuth subcitrate was effective against both clarithromycin-resistant and metronidazole-resistant H. pylori strains.
• The Maastricht V/Florence Consensus Report (Malfertheiner et al., 2017, Gut) recommends bismuth quadruple therapy as first-line treatment in areas of high clarithromycin resistance.

Dosing

• Bismuth subsalicylate (Pepto-Bismol): 524 mg (2 tablets) four times daily during treatment
• Bismuth subcitrate (De-Nol): 120 mg four times daily during treatment
• Duration: 10–14 days as part of quadruple therapy
• Note: Bismuth-containing products are available OTC in many countries but should be used under medical supervision for H. pylori treatment

Safety

Short-term use (10–14 days) is safe. May cause black stools and darkening of the tongue (harmless). Do not exceed recommended doses or duration. Bismuth subsalicylate contains salicylate — avoid in aspirin allergy, children with viral illness (Reye’s syndrome risk), and those on anticoagulants.

Comparison Table: Best Supplements for H. pylori

Frequently Asked Questions (FAQ)

Q: Can supplements alone eradicate H. pylori? A: While some supplements (particularly mastic gum and sulforaphane) have shown anti-H. pylori activity in clinical studies, none have demonstrated eradication rates comparable to standard antibiotic therapy. Supplements are best used as adjuncts to enhance eradication rates, reduce side effects, and support gastric healing — not as replacements for prescribed therapy.

Q: Should I take probiotics during H. pylori antibiotic treatment? A: Yes. Multiple meta-analyses show that probiotics improve eradication rates by 10–15% and significantly reduce antibiotic-associated side effects (diarrhea, nausea, taste disturbance). Take probiotics at least 2 hours apart from antibiotics.

Q: How do I know if H. pylori has been eradicated? A: Wait at least 4 weeks after completing treatment, then get a urea breath test (UBT) or stool antigen test. Do not use serology (blood antibody test) for confirmation, as antibodies can remain positive for months after successful eradication.

Q: Can I take zinc carnosine and mastic gum together? A: Yes. They work through different mechanisms and can be combined. A common adjunct protocol is zinc carnosine + mastic gum + probiotics alongside standard antibiotic therapy.

Q: What about diet during H. pylori treatment? A: Avoid alcohol, spicy foods, and caffeine, which can irritate the gastric mucosa. Include foods rich in polyphenols (green tea, berries, broccoli sprouts) and omega-3 fatty acids, which have anti-inflammatory and anti-H. pylori properties. A Mediterranean-style diet is generally recommended.

Bottom Line

H. pylori is a serious infection that requires medical treatment, but evidence-based supplements can significantly enhance outcomes. Zinc carnosine protects the gastric mucosa and improves eradication rates when added to standard therapy. Mastic gum has direct bactericidal activity against H. pylori. Broccoli sprout extract (sulforaphane) kills H. pylori — including antibiotic-resistant strains — while activating the body’s own antioxidant defenses. Probiotics improve eradication rates by 10–15% and reduce treatment side effects. Bismuth is a proven antimicrobial that forms the backbone of quadruple therapy.

The most effective approach combines standard medical therapy with strategic supplementation: probiotics throughout treatment, zinc carnosine for mucosal protection, and sulforaphane-rich broccoli sprout extract for additional anti-H. pylori activity. Always work with your healthcare provider to develop a comprehensive treatment plan.

Sources

1. Al-Said, M.S., et al. (1986). Evaluation of mastic, a crude drug obtained from Pistacia lentiscus for gastric and duodenal ulcer. Journal of Ethnopharmacology, 15(3), 271–278.
2. Cindoruk, M., et al. (2007). The effect of Saccharomyces boulardii on Helicobacter pylori eradication. Digestive Diseases and Sciences, 52(12), 3275–3278.
3. Dabos, K.J., et al. (2010). The effect of mastic gum on Helicobacter pylori: a pilot study. Phytomedicine, 17(3-4), 296–299.
4. Dore, M.P., et al. (2000). Bismuth subcitrate-based triple therapy for clarithromycin-resistant Helicobacter pylori. Alimentary Pharmacology & Therapeutics, 14(8), 1053–1058.
5. Ford, A.C., et al. (2008). Eradication therapy for peptic ulcer disease in Helicobacter pylori-positive people. Cochrane Database of Systematic Reviews, (4), CD003840.
6. Francavilla, R., et al. (2008). Inhibition of Helicobacter pylori infection in humans by Lactobacillus reuteri ATCC 55730. Alimentary Pharmacology & Therapeutics, 28(10), 1231–1238.
7. Haristoy, X., et al. (2003). Efficacy of sulforaphane in eradicating Helicobacter pylori in human gastric xenografts implanted in nude mice. Antimicrobial Agents and Chemotherapy, 47(12), 3982–3984.
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9. Huwez, F.U., et al. (1998). Mastic gum kills Helicobacter pylori. New England Journal of Medicine, 339(26), 1946.
10. Kashimura, H., et al. (1999). Polaprezinc, a zinc-carnosine chelate compound, and Helicobacter pylori eradication. Alimentary Pharmacology & Therapeutics, 13(12), 1645–1650.
11. Lü, M., et al. (2016). Effects of Helicobacter pylori eradication with probiotic supplementation. European Journal of Gastroenterology & Hepatology, 28(10), 1130–1136.
12. Malfertheiner, P., et al. (2017). Management of Helicobacter pylori infection: the Maastricht V/Florence Consensus Report. Gut, 66(1), 6–30.
13. Savoldi, A., et al. (2018). Prevalence of antibiotic resistance in Helicobacter pylori: a systematic review and meta-analysis in World Health Organization regions. Gastroenterology, 155(5), 1372–1382.
14. Shimada, T., et al. (1999). Polaprezinc as an adjunct to triple therapy for Helicobacter pylori eradication. Scandinavian Journal of Gastroenterology, 34(10), 1000–1004.
15. Tan, B., et al. (2017). Zinc carnosine protects against Helicobacter pylori-induced gastric damage. Scientific Reports, 7, 41970.
16. Wang, Z.H., et al. (2013). Meta-analysis of the efficacy and safety of Lactobacillus-containing and Bifidobacterium-containing probiotic compound preparation in Helicobacter pylori eradication therapy. Journal of Clinical Gastroenterology, 47(1), 25–32.
17. Yanaka, A., et al. (2009). Dietary sulforaphane-rich broccoli sprouts reduce colonization and attenuate gastritis in Helicobacter pylori-infected mice and humans. Cancer Prevention Research, 2(4), 353–360.
18. Yanaka, A., et al. (2011). Sulforaphane-rich broccoli sprout extract reduces Helicobacter pylori colonization. Cancer Prevention Research, 4(8), 1249–1256.

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