Several herbs have genuine evidence behind them for easing gastritis symptoms and helping the stomach lining heal. The most effective options work through a few distinct pathways: coating the irritated lining with a protective barrier, reducing inflammation, fighting the H. pylori bacteria that cause many cases, or boosting the stomach’s own mucus defenses. Here’s what the research actually supports.
Deglycyrrhizinated Licorice (DGL)
DGL is one of the best-studied herbal options for stomach lining damage. Unlike acid-suppressing medications, DGL works by strengthening the stomach’s natural defenses. It stimulates mucus production and promotes healing of damaged tissue rather than simply blocking acid.
The clinical results are impressive. In a study of 33 people with gastric ulcers, those taking DGL saw a 78% reduction in ulcer size over one month, compared to 34% in the placebo group. Complete healing occurred in 44% of DGL users versus just 6% on placebo. A larger study of 874 people with chronic duodenal ulcers found DGL healed ulcers at the same rate as conventional medication, but with fewer relapses: 8.2% relapsed on DGL compared to 12.9% on the standard drug and 16.4% on antacids.
There’s a specific detail that matters here: DGL needs to mix with your saliva to work. Capsule forms have not been shown to be effective. The standard approach is two to four chewable tablets (380 mg each) taken 20 minutes before meals. Taking them after meals produces poor results. Most protocols run 8 to 16 weeks depending on how you respond. Regular licorice can raise blood pressure, but DGL has the compound responsible for that effect removed, making it safer for ongoing use.
Ginger
Ginger is particularly useful if your gastritis is linked to H. pylori, the bacterium responsible for a large share of chronic gastritis cases. A clinical study found that 3 grams of ginger powder daily produced an H. pylori eradication rate of 53.3%, along with significant improvement in digestive symptoms like bloating, nausea, and stomach pain.
Ginger works through multiple channels at once. Its active compounds suppress bacterial growth and prevent H. pylori from adhering to the stomach wall. It also inhibits excess acid secretion, increases protective mucus production, and reduces the inflammation that H. pylori triggers. You can use fresh ginger in cooking, brew it as tea, or take it in powdered supplement form. The study showing H. pylori eradication used powdered ginger split across the day with meals.
Chamomile
Chamomile reduces smooth muscle spasms in the digestive tract and calms inflammation, making it well suited for gastritis that shows up as cramping, burning, or general stomach discomfort after eating. It has a long track record as a gastrointestinal remedy, and its anti-inflammatory effects are relevant to the kind of mucosal irritation that defines gastritis.
Chamomile tea is the most common preparation. One to three cups daily between meals gives the compounds direct contact with your stomach lining. One thing to be aware of: chamomile can interact with warfarin and certain medications processed by the liver. If you take blood thinners, check with your pharmacist before adding chamomile to your routine.
Slippery Elm and Marshmallow Root
These two herbs work through the same basic mechanism. Both are rich in mucilage, a type of polysaccharide that absorbs water and forms a thick, viscous gel. When this gel reaches your stomach, it creates a physical protective barrier over the inflamed lining, shielding it from acid and giving the tissue underneath a chance to heal.
Marshmallow root produces a layer that researchers describe as “mucin-like,” meaning it mimics the stomach’s own protective mucus coating. It also promotes tissue regeneration beneath that barrier. Slippery elm works similarly, with its mucilage forming a coating that reduces acid-related irritation and inflammation. Both are available as teas, lozenges, and powdered supplements. For gastritis specifically, liquid preparations like teas or powders mixed into water make the most sense because they coat the stomach directly on the way down. Drinking them on an empty stomach, about 20 to 30 minutes before meals, maximizes contact time with the lining.
Mastic Gum
Mastic gum is a resin from a tree native to the Greek island of Chios, and it has a specific talent: killing H. pylori. Research published in the New England Journal of Medicine confirmed that mastic gum is bactericidal against H. pylori strains at very low concentrations. Even doses as small as 1 mg per day for two weeks have been shown to rapidly improve peptic ulcers.
Mastic gum also inhibits bacterial growth at concentrations well below what’s needed to kill the organisms outright, meaning even small amounts slow H. pylori activity. It’s typically taken as a supplement in capsule or powder form. If your gastritis has been linked to H. pylori through testing, mastic gum is one of the stronger herbal options to consider, either on its own or alongside conventional treatment.
Aloe Vera
Aloe vera juice shows promise for gastritis, though the strongest evidence so far comes from animal research rather than large human trials. In laboratory studies, aloe vera reduced inflammatory markers in damaged stomach tissue by roughly 45% compared to no treatment, while also boosting anti-inflammatory compounds. It promoted faster healing of ulcerated tissue at rates comparable to a standard prescription medication used for the same purpose.
The proposed mechanisms include reducing the immune cell activity that drives ongoing inflammation, lowering levels of inflammatory signaling molecules, and supporting tissue repair. If you try aloe vera juice, look for products specifically labeled for internal use, as some aloe products contain compounds meant only for topical application that can cause digestive upset. A small amount (1 to 2 ounces) before meals is the typical approach.
How Preparation Affects Results
For gastritis, how you take an herb matters as much as which herb you choose. The stomach lining is the target, so direct contact between the remedy and the inflamed tissue improves results. Teas, powders mixed into water, and chewable tablets all deliver active compounds straight to the stomach surface. Capsules that dissolve further down the digestive tract may be less effective for this specific condition, as the DGL research demonstrated.
Timing also plays a role. Taking herbal preparations on an empty stomach or 15 to 20 minutes before eating gives them unobstructed access to the lining before food arrives. Green tea consumed regularly has been associated with lower rates of gastritis in population studies, suggesting that consistent daily use matters more than occasional doses. Peppermint, while helpful for some digestive issues, can relax the valve between the stomach and esophagus, potentially worsening heartburn. If reflux is part of your gastritis picture, peppermint is better avoided or used only in enteric-coated form.
Realistic Timelines for Improvement
Acute gastritis, the kind triggered by a specific event like heavy alcohol use or a short course of pain medication, often improves within a few days to a couple of weeks with the right support. Chronic gastritis is a different story. It can take months to fully resolve, and herbs work best as part of a broader approach that includes identifying and removing the original cause, whether that’s H. pylori, ongoing medication use, or dietary triggers.
DGL studies showed meaningful ulcer healing within one month, with protocols typically running 8 to 16 weeks total. Ginger’s effects on H. pylori were measured over a supplementation period of several weeks. These aren’t overnight fixes, but the timelines are comparable to what you’d expect from conventional treatment. Combining herbs that work through different mechanisms, like a mucilage-forming herb for immediate comfort alongside ginger or mastic gum to address H. pylori, is a reasonable strategy if bacterial infection is involved.
Safety Considerations
Herbal remedies are not automatically safe, and a few interactions are worth knowing about. Chamomile can interact with warfarin and other blood thinners, potentially increasing bleeding risk. Ginger also has mild blood-thinning properties and may amplify the effects of anticoagulant medications. Regular licorice (not DGL) raises blood pressure and depletes potassium, which is why the deglycyrrhizinated form exists. If you take medications with a narrow margin of safety, particularly blood thinners, heart medications, or immunosuppressants, herb interactions become more important to investigate before starting.
For most people, these herbs are well tolerated at the doses used in studies. Starting with one herb at a time, rather than several at once, makes it easier to identify what’s helping and what might be causing a reaction.