A patient’s story
Sarah, a 47-year-old professional, came to clinic feeling frustrated and confused. She had lived for years with bloating, reflux-like burning, and a heavy, uncomfortable feeling after meals. Despite taking acid-suppressing medication daily, her symptoms were not improving. She avoided trigger foods, ate smaller portions, and slept propped up at night, yet still felt unwell.
What surprised her most was learning that her symptoms might not be caused by too much acid, but by too little.
This is a story we hear far more often than people realise.
What is stomach acid and why is it so important?
Stomach acid, also known as gastric acid, is essential for healthy digestion. Its role goes far beyond breaking down food.
Adequate acid levels help to:
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Break down proteins into usable building blocks
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Activate key digestive enzymes such as pepsin
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Enable absorption of vital nutrients including iron, vitamin B12, calcium, and magnesium
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Act as a natural barrier against harmful bacteria entering the gut
When acid levels are low, a condition called hypochlorhydria, digestion becomes inefficient. Food may linger in the stomach, ferment, or pass through only partially digested, setting the stage for ongoing digestive symptoms.
Can low stomach acid feel like reflux or indigestion?
Yes, and this is where confusion often begins.
Low stomach acid can closely mimic reflux, heartburn, and indigestion. Common symptoms include:
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Bloating and excessive belching
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A burning or pressure-like sensation after eating
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Feeling full very quickly
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Nausea
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Constipation or diarrhoea
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Excess wind
Because these symptoms resemble high-acid conditions, many people are placed on long-term acid suppression. In some cases, this can worsen the underlying issue, creating a cycle that is hard to break.
Signs that may point towards low stomach acid
People with hypochlorhydria may notice:
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Bloating shortly after meals
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Food sitting heavily or feeling “stuck”
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Frequent burping rather than acidic regurgitation
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Poor tolerance of protein-rich meals
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Recurrent nutrient deficiencies
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Fatigue related to iron or B12 deficiency
Not everyone experiences the same pattern. This is why careful clinical assessment matters.
What causes low stomach acid?
Several factors can reduce acid production over time:
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Ageing, as acid secretion naturally declines
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Chronic stress, which suppresses digestive function
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Long-term use of proton pump inhibitors, H2 blockers, and antacids
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Helicobacter pylori infection
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Autoimmune conditions affecting the stomach
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Repeated or prolonged antibiotic use
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Certain chronic medical conditions
Often, it is a combination of factors, rather than a single cause.
How is low stomach acid diagnosed?
There is no single definitive test for hypochlorhydria. Diagnosis relies on a holistic clinical approach, which may include:
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A detailed symptom and dietary history
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Review of current and past medications
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Blood tests to identify nutrient deficiencies
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Endoscopy when appropriate, to assess stomach lining health
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Excluding other causes such as GORD, gastritis, or functional dyspepsia
At LSDC Healthcare, the focus is on understanding why symptoms persist, not just suppressing them.
How is low stomach acid treated?
Treatment is individualised and depends on the wider digestive picture. Management may involve:
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Reviewing and, where appropriate, adjusting long-term acid-suppressing medication
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Dietary changes using nutrient-dense, whole foods
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Smaller, well-balanced meals
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Correcting vitamin and mineral deficiencies
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Supporting digestion through lifestyle and stress reduction
Any medication changes should always be supervised by a specialist.
Why the correct diagnosis matters
Treating low stomach acid as if it were excess acid can lead to persistent symptoms, nutritional depletion, and years of frustration. A personalised assessment allows for targeted care and better long-term outcomes.
When to seek specialist advice
If you have ongoing bloating, reflux-like symptoms, or indigestion that does not respond to standard treatment, a specialist review can help determine whether low stomach acid may be playing a role.
Get clarity about your digestion
At LSDC Healthcare, we provide consultant-led assessments to uncover the real cause of persistent digestive symptoms and guide effective, evidence-based treatment.