Indigestion

Reviewed by Dr. Nikita Dinger, Founder & CEO, BioMeBar. Last reviewed 7 October 2026.

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What it is

Feeling stuffed after a few spoons of rice. Pain under the ribs that arrives with every meal. A heaviness that lingers for hours after a plain lunch. Doctors call a persistent version of this dyspepsia, and when tests such as endoscopy show no ulcer or other cause, it is labelled functional dyspepsia.

Under the Rome IV criteria, functional dyspepsia is defined by bothersome meal-related fullness, early satiety, or upper abdominal pain or burning, present for the last three months with onset at least six months earlier. It is common, long-lasting for many, and related to how the stomach and upper gut move and sense food. Heartburn is a different pattern; see acidity and GERD.

Common symptoms

• Feeling uncomfortably full after eating
• Early satiety, so you cannot finish a normal portion
• Burning or pain in the upper middle abdomen, not tied to bowel movements
• Upper abdominal bloating and belching
• Nausea, occasionally vomiting
• Symptoms that go up and down with stress and sleep

Many people have both meal-related fullness and burning pain, and some also have reflux or IBS.

How gut bacteria may be involved

Several ideas are being studied: slow or irregular stomach emptying, an over-sensitive stomach, low-grade inflammation in the duodenum after an infection, and changes in the microbial communities of the small intestine. The research is early. We do not have a bacterial test that diagnoses functional dyspepsia.

H. pylori infection is worth excluding. A minority of people with dyspepsia symptoms have it, and testing for it is a standard first step in many guidelines. Gut bacteria are also affected by acid-reducing medicines that are commonly prescribed for dyspepsia. For general background, our gut-brain axis explainer shows why mood and sleep can alter upper-gut symptoms.

Diet and everyday habits

Fatty food empties from the stomach more slowly, and large meals stretch it more, so portion and fat load are the first levers.

• Switch to five smaller meals instead of three large ones
• Eat slowly and put the spoon down between bites. Twenty minutes for a meal is a reasonable target
• Go lighter on deep-fried and ghee-heavy dishes such as parathas, puri, pakoras and creamy gravies, particularly in the evening
• Plain dal-rice, khichdi, idli, poha, upma and jowar roti with dry sabzi are often easier
• Soups and thin dals can feel gentler than dense meals on bad days
• Limit fizzy drinks, strong tea, coffee and alcohol if they set you off
• Skip lying down straight after food. A ten-minute walk helps
• Notice whether gluten, onion, or raw salads worsen symptoms. Keep a two-week diary instead of guessing
• Some people find ginger or fennel tea soothing after meals, though evidence is modest
• Avoid regular painkillers like diclofenac without medical advice, as they irritate the stomach

Posture and pace matter more than most people expect. Eating while hunched over a laptop or scrolling a phone makes it easy to swallow air and overeat before fullness registers. A calm table, a glass of water sipped between bites and a short pause before seconds give the stomach time to signal.

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When to see a doctor first

New dyspepsia needs medical assessment before assuming it is functional. See a doctor if you have:

• Unintended weight loss
• Persistent vomiting, or vomiting blood
• Black stools
• Trouble swallowing or pain on swallowing
• Anaemia
• Onset after age 50, or a family history of stomach or oesophageal cancer
• A lump in the abdomen, jaundice or fever
• Chest pain or breathlessness, which needs urgent attention

How BioMeBar approaches it

We do not diagnose, treat or cure indigestion or functional dyspepsia. Once red flags are cleared by a doctor, we match a personalised synbiotic to the gut profile and symptoms you share, together with food and lifestyle guidance centred on portion size, meal pacing and your regional diet, and with check-ins to track how fullness and discomfort change. We also look at medicines that may add to upper-gut symptoms and encourage clients to discuss them with their doctor.

Common questions

Is indigestion the same as acidity?

Not always. Acidity usually means heartburn and regurgitation. Dyspepsia is more about fullness, early satiety and upper abdominal discomfort.

Why do I feel full so fast?

In some people the upper stomach does not relax well to receive food, or the stomach is more sensitive to stretch. This is common in functional dyspepsia.

Do I need an endoscopy?

Doctors decide based on age and red flags. Younger people without alarm features are often tested for H. pylori first.

Can anxiety cause indigestion?

Anxiety and low mood are associated with dyspepsia, and symptoms often ease as stress eases, though stress is not the only factor.

Sources

• Rome IV criteria for functional gastroduodenal disorders
• ACG and Canadian Association of Gastroenterology Clinical Guideline: Management of Dyspepsia
• NICE guideline on gastro-oesophageal reflux disease and dyspepsia in adults
• ICMR-NIN Dietary Guidelines for Indians

Talk to us

If you would like to know whether BioMeBar can support you, message us on WhatsApp. Tell us your symptoms and your pincode and we will take it from there. Not sure where to start? Take the free gut assessment, which takes about three minutes.

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BioMeBar provides nutrition and gut health guidance and does not replace medical care. See a doctor for severe, persistent or worrying symptoms.