Chronic Gastritis: Diet Tips and H. pylori Treatment (2026)

A Common Condition Requiring Scientific Management

Chronic gastritis — inflammation of the stomach lining — is extremely common in adults. Many people receive a diagnosis of "chronic superficial gastritis" or "chronic atrophic gastritis" after an endoscopy and are unsure what to do next. The key to managing chronic gastritis comes down to two things: remove what is damaging the stomach, and provide the conditions for mucosal healing.

The primary cause is Helicobacter pylori infection (accounting for roughly 60–70% of cases), followed by long-term use of NSAIDs (aspirin, ibuprofen, etc.), bile reflux, irregular eating habits, excessive alcohol, and autoimmune factors. Different types of chronic gastritis require somewhat different management strategies.

H. pylori — The Number One Culprit

H. pylori is a bacterium that colonizes the stomach lining, producing urease to create a micro-alkaline niche for survival while continuously damaging the mucosa. The WHO classifies it as a Class I carcinogen for gastric cancer.

Should you get tested? If you have recurrent upper abdominal discomfort, post-meal bloating, belching, acid reflux, or a family history of gastric cancer, H. pylori testing is recommended. Common methods include the urea breath test (C13 or C14, non-invasive and accurate), rapid urease test during endoscopy, and stool antigen test.

Should it be treated? Current Chinese and international consensus recommends eradication in all adults who test positive, even without symptoms. Standard therapy is bismuth-containing quadruple therapy (proton pump inhibitor + bismuth + two antibiotics) for 10–14 days. Specific regimens must be determined by a gastroenterologist based on resistance patterns and individual factors.

A breath test should be performed at least 4 weeks after completing treatment to confirm eradication.

Evidence-Based Diet Strategies

1. Eat regularly; don't skip meals or overeat. The stomach thrives on routine. Three meals at consistent times, each to about 70% fullness, is the most basic principle. Prolonged fasting exposes the mucosa to acid damage, while overeating causes excessive distension.

2. Chew thoroughly. Proper chewing reduces the stomach's mechanical workload. Salivary amylase also begins preliminary digestion. Aim for 20–30 chews per mouthful.

3. Choose gentle, non-irritating foods. Avoid very hot (over 60°C/140°F), very cold, very hard, and heavily spiced foods. Very hot beverages/foods are classified as probable carcinogens for esophageal cancer by the IARC.

4. Recognize individual triggers. Some foods bother certain people (e.g., chives or sweet potatoes may cause bloating; coffee may worsen reflux), but that doesn't mean everyone must avoid them. Keeping a food diary can help identify personal triggers.

5. The truth about porridge. Plain rice porridge is gentle on an upset stomach, but relying on it long-term leads to nutritional inadequacy, and large volumes of liquid may worsen reflux. Porridge is fine occasionally but shouldn't replace balanced meals.

Lifestyle Modifications That Matter

1. Quit smoking and limit alcohol. Smoking reduces gastric mucosal blood flow and inhibits prostaglandin synthesis, directly damaging the mucosal barrier. Alcohol directly irritates the stomach lining.

2. Manage stress. The "nervous stomach" has physiological roots. Chronic anxiety and stress affect acid secretion and gastric motility through the brain-gut axis. Moderate exercise, adequate sleep, and stress management benefit stomach health.

3. Use stomach-damaging medications cautiously. If you take NSAIDs (aspirin, ibuprofen) long-term, discuss with your doctor whether gastroprotective agents should be added.

References

· Chinese Medical Association Gastroenterology — Consensus on Chronic Gastritis
· Fifth National Consensus Report on H. pylori Management (China)
· National Health Commission — H. pylori Prevention and Treatment Patient Resources
· Kyoto Global Consensus on H. pylori Gastritis