Heidelberg Gastric pH Test in Los Angeles, CA
The Heidelberg test measures how much acid your stomach produces using a small, swallowable pH capsule. Many digestive symptoms, from reflux and bloating to nutrient deficiencies, can be linked to stomach acid that is too low or too high. At LA Integrative Gastroenterology & Nutrition, this test helps our physicians understand your gastric function and create personalized treatment for reflux, gastritis, and digestive dysfunction. Please contact our office to check current availability.
Request an AppointmentWhy Stomach Acid Matters
Adequate stomach acid is essential for digesting protein, absorbing minerals such as iron, zinc, and calcium, absorbing vitamin B12, protecting against swallowed pathogens, and signaling the rest of the digestive process. Many people, especially older adults and those who have used acid-suppressing medications long-term, produce too little acid (hypochlorhydria) or none at all (achlorhydria). Low acid can cause bloating, indigestion, nutrient deficiencies, and symptoms that are often mistaken for excess acid. Others produce excess acid, which contributes to reflux and ulcers.
How the Heidelberg Test Works
The Heidelberg test uses a small capsule containing a pH sensor and radio transmitter. After you swallow the capsule, it measures the acidity in your stomach and transmits readings to a receiver. During the test, you drink small amounts of a sodium bicarbonate solution, and the test records how quickly your stomach returns to its normal acidic state after each challenge. The pattern shows whether your stomach produces normal, low, or excess acid.
What the Test Can Reveal
- Your baseline stomach acid level
- How quickly your stomach recovers acidity after a bicarbonate challenge
- Patterns of hypochlorhydria or achlorhydria
- Information that helps determine whether acid-suppressing therapy is needed
Conditions Evaluated
The Heidelberg test can help evaluate GERD and chronic reflux, hypochlorhydria, gastritis, indigestion, malabsorption, iron deficiency, food sensitivities, and symptoms associated with SIBO.
Preparation
Your doctor will provide specific instructions, which typically include stopping acid-suppressing medications for a period before the test, fasting overnight, and reviewing other medications with our office. Never stop a prescribed medication without guidance from your physician.
Treatment Based on Results
If acid is low, treatment may include digestive bitters, betaine HCl or other digestive support, dietary changes, and treatment of underlying causes. If acid is high, treatment may focus on dietary changes, stress management, healing the stomach lining, and medication when appropriate. Your results are integrated into a customized nutrition plan and our broader functional medicine approach.
Test Availability
The Heidelberg test is currently listed as unavailable on our Heidelberg fees page. Please call LA Integrative Gastroenterology & Nutrition at (310) 289-8000 to check current availability or to ask about alternative ways to evaluate stomach acid, such as upper endoscopy or other technical services.
Heidelberg Test FAQs
What does the Heidelberg test measure?
It measures stomach pH and how quickly your stomach restores its normal acidity after bicarbonate challenges, showing whether you produce normal, low, or excess acid.
Why would I need my stomach acid tested?
Testing can help explain symptoms such as reflux, bloating, indigestion, and nutrient deficiencies, and it can guide decisions about acid-suppressing medication.
Is it safe to stop acid-reducing medication before the test?
Most patients can safely pause these medications for a short time, but you should only do so with guidance from your physician.
Can low stomach acid cause reflux?
Yes. Low acid can slow digestion and contribute to bloating and reflux-like symptoms, which is why testing is helpful before long-term acid suppression.
How is low stomach acid treated?
Treatment may include digestive bitters, betaine HCl, dietary changes, and addressing underlying causes such as gastritis or long-term medication use.
Is the Heidelberg test available now?
It is currently listed as unavailable. Call LA Integrative Gastroenterology & Nutrition at (310) 289-8000 to check availability or discuss alternative testing.
Ask About Stomach Acid Testing in Los Angeles, CA
Wondering whether low or high stomach acid is behind your symptoms? Call LA Integrative Gastroenterology & Nutrition at (310) 289-8000 to discuss testing options.