The Heidelberg Test
Described as the Gold Standard medical test for the assessment of stomach acid and gut function, The Heidelberg Test has been used worldwide for over 40 years.
Supported by over 150 clinical studies, this hypochlorhydria test is a much less invasive alternative to traditional endoscopy and gastroscopy tests, completely removing the need for sedation and stomach tubes.

What is The Heidelberg Test?
Also known as the stomach acid test, The Heidelberg Test provides accurate readings of many gut health markers, including:
- Stomach pH
- Stomach acidity levels
- The timing of stomach emptying
- Pyloric valve function
It can be used to determine popular stomach acid imbalances, such as Hypochlorhydria (low acid), Hyperchlorhydria (high acid), or Achlorhydria (absence of acid) as well as other digestion-related conditions including Pyloric insufficiency, gastric ulcers, and gastritis.
What does The Heidelberg Test consist of?
Unlike traditional pH monitoring tests that require sedation and the use of highly invasive, uncomfortable stomach tubes, the Heidelberg hypochlorhydria test involves swallowing a small capsule that makes its way outside of the body naturally over the course of a few hours.
Whilst within the body, the capsule measures acidity levels and bodily functions with ease, giving clinicians excellent insight into your gastric and digestive function without the need for trauma and discomfort.

Why take the Heidelberg stomach acid test?
Exclusive to The Optimal Health Group in the UK, The Heidelberg stomach acid test gives clients many benefits, including:
1. Avoiding uncomfortable, invasive procedures
Whilst diagnostic testing is an essential precursor to developing effective treatment pathways, this stomach acid test is an invaluable alternative to traditional tests including endoscopy or gastroscopy and can be completed without hospital day admission.
This makes it a much better solution for patients that suffer from white coat syndrome.
2. No recovery period
As well as avoiding the discomfort of traditional testing, you can also forego the use of sedation and the inevitable recovery period of up to 24 hours.
Needed to relax the body enough to insert the tube into the stomach, the side effects of sedation can be difficult and unpleasant, and some may wish to avoid this if possible.
How much does The Heidelberg Test cost?
The Heidelberg Test, including an interpretation consultation, is £495.
Contact the Optimal Health Patient Service Team to book The Heidelberg Test
For non-invasive in-clinic-based testing for gastric reflux or digestive problems, visit the Optimal Health Clinic, London.
For more information or to book your consultation, you can call us, send us an email, or fill in our contact form and we’ll get back to you as soon as we can.