Quick answer: Gastritis means inflammation of the stomach lining. Strictly speaking, it is confirmed by looking at the lining during an endoscopy, often with a small biopsy, but the word is also used loosely for a burning or unsettled stomach. The most common causes are Helicobacter pylori infection, anti-inflammatory painkillers such as ibuprofen or aspirin, alcohol and, less often, an autoimmune process. There is no single “gastritis diet” backed by strong evidence, but smaller, regular meals, noticing your personal triggers and limiting alcohol may make the stomach more comfortable. Finding and addressing the cause, with your doctor, matters more than any food list.
“Gastritis” is one of the words I hear most often in first sessions. Sometimes it comes from an endoscopy report; sometimes it is a label someone was given after describing a burning stomach. Both deserve attention, but they are not always the same thing. If your main symptom is burning that rises into the chest, you may also find acid reflux and heartburn helpful, and if you have tested positive for H. pylori, read H. pylori positive: what it means.
What is gastritis, exactly?
Gastritis is inflammation of the stomach lining (the mucosa). It can be acute, coming on suddenly after a trigger such as a heavy drinking session or a course of anti-inflammatories, or chronic, developing slowly over months or years. Chronic gastritis often causes no symptoms at all and is only found during an endoscopy done for another reason.
Many people who are told they have “gastritis” have never had an endoscopy. Their symptoms, such as burning in the upper abdomen, fullness after small meals or nausea, may instead fit what doctors call functional dyspepsia: real, bothersome symptoms without visible inflammation.6 The distinction matters, because the approach can differ.
What causes gastritis?
- Helicobacter pylori. This bacterium is the most common cause of chronic gastritis worldwide. International consensus now considers H. pylori gastritis an infectious condition that should be addressed when found, with your doctor.1,2
- Anti-inflammatory painkillers (NSAIDs) and aspirin. Regular use of ibuprofen, naproxen, diclofenac or aspirin can irritate and damage the stomach lining, particularly in older people or alongside steroids or blood thinners.4
- Alcohol and smoking. Both can irritate the lining and slow its repair.
- Bile reflux. Bile flowing back into the stomach, for example after some types of surgery, can inflame the lining.
- Autoimmune gastritis. Here the immune system targets the acid-producing cells. It is linked with low vitamin B12 and iron, and is more common in people with autoimmune thyroid disease or type 1 diabetes.5
- Severe physical stress. Major illness, surgery or burns can cause stress-related changes in the lining.
What are the symptoms of gastritis?
When gastritis does cause symptoms, people commonly describe:
- a burning or gnawing pain in the upper middle abdomen
- feeling full quickly or uncomfortably full after meals (see why you may feel full so quickly)
- nausea, sometimes in the morning
- bloating and belching in the upper abdomen
- reduced appetite
These symptoms overlap with reflux, ulcers, gallbladder problems and functional dyspepsia, which is why a proper medical work-up is worthwhile, especially if symptoms are new or persistent.
When to see your doctor first
- Vomiting blood or material that looks like coffee grounds
- Black, tarry stools
- Difficulty or pain when swallowing
- Unintentional weight loss or anaemia
- Persistent vomiting
- New indigestion symptoms after 55, or symptoms that keep getting worse
- Severe, sudden abdominal pain
What should I eat if I have gastritis?
There is no single food list shown to reverse gastritis, and very restrictive diets can do more harm than good. What tends to help is a gentle, consistent rhythm and paying attention to your own responses:
- Smaller, regular meals. Large meals stretch the stomach and stimulate more acid. Three moderate meals, with a small snack if needed, are often easier than skipping meals and then eating a lot.
- Soft, cooked, simply prepared foods during flare-ups. Soups, stews, cooked vegetables, eggs, fish, rice, oats, potatoes and ripe bananas are often well tolerated.
- Plenty of colourful plants as tolerated. Vegetables, fruit and herbs provide polyphenols and fibre that support the gut lining and microbiome. Broccoli sprouts, rich in sulforaphane, reduced H. pylori levels and markers of gastritis in a small human study, but they are a supportive food, not a replacement for the approach your doctor recommends.3
- Protein at each meal. Protein provides the building blocks the stomach lining needs to repair.
- Eat slowly and chew well. This eases the stomach's mechanical work.
Which foods may make gastritis worse?
Triggers are individual, and the evidence for blanket bans is limited. The ones people most often notice are:
- alcohol, which directly irritates the lining
- very spicy dishes, especially on an empty stomach
- large, high-fat meals late in the evening
- coffee for some people, particularly on an empty stomach
- very acidic drinks, such as fizzy drinks and some juices
Rather than cutting everything at once, a short food and symptom diary can show which of these matter for you, so you keep as much variety as possible.
A burning stomach that never quite settles?
Let's look at your symptoms, your tests and your daily routine to see what may be keeping your stomach irritated – a free call, with no commitment.
Book your free 15-minute call →Can gastritis lead to nutrient deficiencies?
Yes, particularly when it is long-standing. Stomach acid and a protein called intrinsic factor are needed to absorb vitamin B12, and acid also helps iron absorption. Autoimmune gastritis and long-standing H. pylori gastritis can therefore be associated with low B12 and iron.5 Tiredness, pins and needles, a sore tongue or low ferritin that won't budge are good reasons to ask your doctor for a blood test.
How can nutritional therapy support gastritis?
Nutritional therapy works alongside medical care, not instead of it. In my sessions, the focus is usually on:
- making sure the cause has been looked for, including H. pylori testing and a review of painkillers, with your doctor
- building a meal rhythm and food choices that keep the stomach comfortable without unnecessary restriction
- checking for knock-on effects, such as low B12, iron or vitamin D
- looking at stress, sleep and eating pace, which all influence digestion
- supporting the gut environment after any course of antibiotics, if one is needed (see supporting your gut after antibiotics)
Some people use soothing supplements such as zinc carnosine, deglycyrrhizinated liquorice or mastic gum. These are optional and individualised, and should be checked against your medicines and medical history first.
Frequently asked questions
How long does gastritis take to settle?
Acute gastritis linked to a clear trigger often settles within days to weeks once the trigger is removed. Chronic gastritis depends on the cause, which is why identifying it with your doctor matters.
Is milk good for gastritis?
Milk may feel soothing for a moment, but it can stimulate more acid afterwards. If you tolerate dairy, moderate amounts as part of a meal are fine for most people; it is not a remedy.
Can stress cause gastritis?
Everyday stress does not directly cause gastritis, but it can make stomach symptoms feel worse through the gut–brain connection. Severe physical stress, such as major illness, can cause stress-related changes in the lining.
Is gastritis the same as an ulcer?
No. Gastritis is inflammation of the lining, while an ulcer is a deeper sore. They share some causes, such as H. pylori and anti-inflammatory painkillers, and an endoscopy can tell them apart.
Can I drink coffee with gastritis?
Some people tolerate a small coffee after food, while others feel worse. Notice your own response, avoid it on an empty stomach and reduce it during flare-ups.
References
- Sugano K, Tack J, Kuipers EJ, et al. Kyoto global consensus report on Helicobacter pylori gastritis. Gut. 2015. PubMed: PMID 26187502
- Malfertheiner P, Megraud F, Rokkas T, et al. Management of Helicobacter pylori infection: the Maastricht VI/Florence consensus report. Gut. 2022. PubMed: PMID 35944925
- Yanaka A, Fahey JW, Fukumoto A, et al. Dietary sulforaphane-rich broccoli sprouts reduce colonization and attenuate gastritis in Helicobacter pylori-infected mice and humans. Cancer Prev Res (Phila). 2009. PubMed: PMID 19349290
- Lanza FL, Chan FK, Quigley EM, et al. Guidelines for prevention of NSAID-related ulcer complications. Am J Gastroenterol. 2009. PubMed: PMID 19240698
- Lenti MV, Rugge M, Lahner E, et al. Autoimmune gastritis. Nat Rev Dis Primers. 2020. PubMed: PMID 32647173
- Stanghellini V, Chan FK, Hasler WL, et al. Gastroduodenal Disorders. Gastroenterology. 2016. PubMed: PMID 27147122
This article is for educational purposes and is not medical advice. Nutritional therapy does not replace medical care. Always work with your doctor for any persistent or new symptoms and before making changes to your care, medication or supplements.