What is Mastagi?

Mastagi is the dried sap (resin) of the mastic tree, a small evergreen shrub native to the Mediterranean — with Chios, Greece being its most famous and protected source. It has been prized since antiquity as a digestive remedy, breath freshener, and healing agent in Greek, Arab, Persian, and Unani medicine. The resin is collected by hand, dried into small crystal-like tears, and used in everything from traditional chewing gum to powdered supplements.

How does Mastagi work?

Mastagi is thought to work primarily by disrupting the cell walls and energy systems of H. pylori — the bacteria responsible for most peptic ulcers — while also calming inflammation in the stomach lining. Its resin acids and triterpenes may help form a mild protective coating over irritated gut tissue, and its antioxidant compounds are thought to reduce oxidative stress in the digestive tract. It is also traditionally believed to ease acid-related discomfort by supporting the gut's own mucosal defenses, though robust clinical evidence for these mechanisms remains limited.

What forms does Mastagi come in?

Capsules and powders are the most practical forms for therapeutic use — standardized resin capsules (500–1000 mg) are the most commonly used form. Chewing the raw resin crystals is the oldest traditional delivery method and still used for oral health and mild indigestion. Essential oil is used topically and aromatically but is not typically used for gut treatment.

Where it comes from:

Mastic has been used medicinally since at least 500 BCE — Hippocrates and Dioscorides both documented its digestive and antimicrobial uses. In Islamic and Unani medicine, it is called 'Mastagi Roomi' and has appeared in classical texts by Ibn Sina (Avicenna) as a remedy for stomach pain, liver complaints, and bad breath. Chios mastic holds a protected designation of origin (PDO) status in the EU, and the island's mastic growers have maintained the same harvesting traditions for over 2,500 years.

What does Mastagi help with?

• Stomach ulcers & H. pylori infection: Mastagi has traditionally been used for stomach ulcers and is thought to have antibacterial properties against H. pylori, the organism responsible for most peptic ulcers. While some preliminary and limited investigations have explored this use, the evidence is not sufficient to position it as a clinically proven or well-studied alternative to standard antibiotic-based treatment. It remains a traditionally used remedy in this area.
• Acid reflux and heartburn (GERD): In traditional practice, mastagi has long been used to soothe the stomach lining and ease acid-related discomfort, thought to work by supporting the gut's own protective mucus layer. Some individuals using it traditionally have reported relief from reflux symptoms, but this is based on observational and anecdotal experience rather than robust clinical trial data.
• Indigestion and bloating: Mastagi has been traditionally used across multiple medical traditions — including Greek, Arab, and Unani medicine — for stomach upset, nausea, and bloating. Its mild antispasmodic and anti-inflammatory properties are thought to help calm an irritated digestive tract, though supporting evidence remains largely traditional and observational rather than clinically validated.
• Gut inflammation (gastritis): The resin acids in mastagi are thought to reduce inflammatory signaling in the stomach lining, and practitioners have traditionally used it to help calm gastritis — whether associated with H. pylori, NSAID use, or stress. It is traditionally regarded as a gentle protective agent, though clinical evidence confirming this effect in humans is limited.
• Inflammatory bowel conditions (Crohn's disease): There have been small, preliminary pilot investigations suggesting mastagi powder may have some effect on markers of gut inflammation in people with active Crohn's disease. These findings are early-stage and observational in nature; mastagi should not be considered a replacement for standard treatment, and any potential complementary role remains unconfirmed.
• Oral health and gum disease: Chewing mastic resin has a long traditional history for freshening breath and supporting gum health. It is thought to have antibacterial properties against oral bacteria linked to tooth decay and gum disease. Evidence for this use is largely traditional and preliminary laboratory-based, and it should not be substituted for established oral hygiene practices.
• High cholesterol: Mastagi has traditionally been used as part of metabolic health support, and it is thought that its active compounds may have some modest influence on cholesterol levels. However, available evidence for meaningful reductions in total cholesterol, LDL, or improvements in HDL is preliminary and inconsistent; it should not be relied upon as a proven cholesterol-lowering intervention.
• Liver health support: Mastagi has traditionally been used to support liver function in Unani and Islamic medicine. Some preliminary observations have noted possible reductions in liver enzyme levels in certain individuals, suggesting a potential mild hepatoprotective role, though this remains insufficiently studied to be considered a clinically validated effect.
• Functional dyspepsia: In traditional practice, mastagi has been used to relieve non-ulcer stomach pain and discomfort, including symptoms such as upper abdominal pain, nausea, and post-meal fullness. Some limited and preliminary investigations have explored this use, but the evidence is not robust enough to confirm superiority over placebo or to make firm efficacy claims.
• Skin inflammation (topical use): Mastic oil and resin-based preparations have traditionally been applied topically for wound healing, acne, and skin inflammation. The anti-inflammatory and antimicrobial compounds in the resin are thought to help reduce redness and inhibit skin bacteria, though evidence for topical use remains largely traditional and preliminary laboratory-based, with no established clinical validation.

What can Mastagi help prevent?

• Recurrence of H. pylori-related ulcers (as part of maintenance therapy)
• Dental plaque and oral bacterial overgrowth

Which foods are rich in Mastagi?

1. Mastic-spiced foods (traditional Greek/Middle Eastern cuisine)

Practical Tips:

Mastagi is a tree resin, not a nutrient found across food groups, so meaningful therapeutic amounts come only from the resin itself (supplements, chewing gum, or raw crystals). To support the same goals — gut lining health, H. pylori defense, and digestive inflammation — focus on a diet rich in fermented foods like kefir and yogurt (for beneficial gut bacteria), broccoli and broccoli sprouts (sulforaphane has documented anti-H. pylori activity), olive oil (anti-inflammatory, also Mediterranean-traditional), garlic and onions (natural antimicrobials), and colorful vegetables high in antioxidants. Avoid NSAIDs, alcohol, and processed foods, which worsen gastric inflammation and counteract mastagi's benefits.

What are the side effects of Mastagi?

• Mild nausea or stomach upset (usually dose-related, improves when taken with food)
• Allergic reactions: rare, but possible in people sensitive to tree resins or pistachios (same plant family)
• Diarrhea at high doses (uncommon)
• Headache: occasionally reported with use
• Contact dermatitis from topical use: rare

Good to know:

Mastagi has an excellent safety record across thousands of years of use. Most people tolerate it very well even at therapeutic doses.

How much Mastagi should you take?

• Recommended daily: 500–2,000 mg per day of standardized mastic gum resin, typically split into 2 doses. For H. pylori and ulcers, amounts of around 1,000 mg/day (500 mg twice daily) are most commonly used. For digestive discomfort, 350–500 mg twice daily is a common starting point.
• Best time of day: Before meals — particularly useful for H. pylori and ulcer applications, as pre-meal dosing maximizes contact time with the stomach lining before food dilutes the resin.
• With or without food: Take 30 minutes before meals for maximum digestive and antibacterial benefit. If stomach upset occurs, taking it with a small amount of food usually resolves this.
• Time to effect: Digestive symptom relief typically begins within 2–4 weeks. H. pylori reduction requires at least 4–8 weeks of consistent use. Cholesterol effects typically noted over 8–18 weeks of use.
• How long to take it: For H. pylori or ulcer treatment: use for a defined 8-week course and retest. For ongoing digestive support or cholesterol: 3-month cycles with a 2–4 week break are a reasonable approach. Long-term daily use appears safe based on available data, but cycling is a sensible precaution.