What is Mastic Gum?

Mastic gum is a natural resin that drips from the bark of the mastic tree (Pistacia lentiscus var. Chia), grown almost exclusively on the Greek island of Chios. When the bark is scored, the sap oozes out and hardens into teardrop-shaped crystals with a distinctive pine-like aroma. It has been prized in Mediterranean, Middle Eastern, and North African cultures for thousands of years — both as a medicine and a flavoring.

How does Mastic Gum work?

Mastic gum works on the gut in two main ways: it has direct antimicrobial action against H. pylori (the bacteria behind most stomach ulcers), and it helps soothe and protect the stomach lining by reducing inflammation and supporting the mucous barrier. Some of its active compounds also appear to gently calm digestive muscle activity, which may ease cramping and discomfort associated with IBS.

What forms does Mastic Gum come in?

Capsules standardized to mastic resin content are the most convenient and widely studied form. Chewing the raw resin tears is the traditional method and may be effective for oral and upper digestive symptoms. Powders can be added to water or smoothies. The essential oil is used topically or for oral hygiene, not typically ingested for gut conditions.

Where it comes from:

Mastic has been listed in ancient Greek, Arab, and Ottoman medical texts as a treatment for stomach ailments, bad breath, and oral infections. The island of Chios has held a protected designation of origin for mastic resin since 1997, and mastic cultivation has been a cultural cornerstone there for millennia. Hippocrates, Dioscorides, and Galen all referenced it in their medical writings.

What does Mastic Gum help with?

• Stomach ulcers and H. pylori infection: Mastic gum has shown a genuine ability to inhibit H. pylori, the bacteria responsible for most stomach ulcers. It works directly against the bacteria and also helps protect the stomach lining, which may reduce ulcer symptoms and support healing — even in cases where antibiotics have been tried before.
• Acid reflux and heartburn: By soothing the stomach lining and reducing inflammation in the upper digestive tract, mastic gum can help calm the burning and discomfort of acid reflux. It doesn't suppress stomach acid the way medications do — instead, it seems to improve the integrity of the gut lining itself.
• Gastritis and stomach inflammation: Mastic's anti-inflammatory compounds help reduce irritation and swelling in the stomach lining. People dealing with gastritis — whether from H. pylori, NSAIDs, or stress — have reported relief from nausea, bloating, and stomach pain with regular use.
• Irritable bowel syndrome (IBS): Some clinical evidence suggests mastic gum can reduce the abdominal pain, bloating, and irregular bowel habits associated with IBS. Its mild antispasmodic effect on gut muscles, combined with its anti-inflammatory action, appears to address several IBS mechanisms at once.
• Crohn's disease and gut inflammation: Pilot research has explored mastic gum in people with Crohn's disease, with early results suggesting it may reduce inflammatory markers and improve symptom scores. It's not a replacement for standard treatment, but may offer meaningful complementary support for inflammatory bowel conditions.
• Bad breath and oral bacteria: Traditional chewing of mastic resin has long been used for oral hygiene, and there is modern support for this use. Mastic has antimicrobial activity against bacteria that cause gum disease and bad breath, making the raw chewable resin a natural alternative to conventional gum.
• High cholesterol: Several trials have found that mastic gum can modestly lower total cholesterol and LDL while also reducing certain inflammatory markers linked to cardiovascular risk. The effect appears to be meaningful, though not as strong as pharmaceutical cholesterol-lowering agents.
• Liver health and fatty liver: Emerging research suggests mastic gum may support liver enzyme levels and reduce markers of liver stress. Some studies show reductions in liver enzymes (ALT, AST) with mastic use, suggesting a potential protective role for the liver — particularly relevant for fatty liver conditions.
• Functional dyspepsia (chronic indigestion): For people with persistent upper stomach discomfort, nausea, and bloating that doesn't have a clear structural cause, mastic gum has shown meaningful symptom relief in clinical trials. It appears to address both the gut motility and inflammatory components of this frustrating condition.

What can Mastic Gum help prevent?

• Recurrence of H. pylori-associated ulcers (when used as maintenance support alongside dietary changes)
• Dental plaque buildup and gum disease (with regular chewing of mastic resin)

Which foods are rich in Mastic Gum?

Mastic gum is a tree resin and is not naturally found in common foods — it must be taken as a supplement or chewed in its raw resin form. To support the same digestive and anti-inflammatory goals, focus on: fermented foods like yogurt and kefir (which support a healthy gut microbiome), broccoli and broccoli sprouts (shown to have activity against H. pylori via sulforaphane), extra-virgin olive oil (anti-inflammatory, supports gut lining integrity), garlic (broad antimicrobial activity in the gut), and green tea (reduces gut inflammation and may inhibit H. pylori adhesion). Avoid alcohol, NSAIDs, processed foods, and excessive caffeine, all of which worsen the stomach lining damage that mastic gum is often used to heal.

What are the side effects of Mastic Gum?

• Mild stomach discomfort or nausea (usually at higher doses or on an empty stomach)
• Loose stools or mild diarrhea in sensitive individuals
• Allergic reactions: rare, but possible in people sensitive to Pistacia species (related to pistachio, cashew family)
• Headache: reported infrequently in clinical trials
• Contact dermatitis with topical use of mastic essential oil on sensitive skin

Good to know:

Mastic gum has an excellent safety record with thousands of years of human use and a consistent profile in modern trials. Most people tolerate it well even at higher doses. It is considered food-safe in the EU and has GRAS status in the US.

How much Mastic Gum should you take?

• Recommended daily: 1,000–2,000 mg per day (typically 500 mg capsules taken 2–4 times daily). For H. pylori specifically, some clinical protocols use up to 2,000 mg/day in divided doses. Chewing 1–2 g of raw resin daily is the traditional oral hygiene dose.
• Best time of day: Divided doses are preferred — typically morning and evening. For ulcer and H. pylori support, taking before meals helps the resin coat the stomach lining before food arrives.
• With or without food: Best taken 30 minutes before meals for gut and ulcer conditions. Can be taken with a small amount of food if stomach sensitivity is a concern.
• Time to effect: Digestive symptom relief: 2–4 weeks. H. pylori reduction: 4–8 weeks. Cholesterol effects: 8–12 weeks.
• How long to take it: For acute issues like H. pylori or gastritis, 4–8 weeks of consistent use is the standard. For chronic gut support, ongoing daily use is generally well tolerated. No formal cycling protocol is required, but periodic reassessment of need is reasonable.