The Heidelberg pH Diagnostic Test
Your stomach acid, measured in real time.
A single capsule. A definitive answer. The Heidelberg pH Capsule measures acid secretion as it happens — no blood draw, no scope, no guesswork.
The Heidelberg pH Diagnostic Test
A single capsule. A definitive answer. The Heidelberg pH Capsule measures acid secretion as it happens — no blood draw, no scope, no guesswork.
How it works
Step 01
A vitamin-sized capsule.
Step 02
Real-time pH.
Step 03
Your stomach acid.
Step 04
A plan with your practitioner.
Your symptoms
You were told you had too much acid. You took the medication. Months turned into years. The symptoms never fully resolved. Nobody measured whether acid was actually the problem.
Learn about reflux and stomach acid →The antimicrobials worked. For a while. Then the bloating returned, the breath test turned positive, and you started another round. Nobody checked whether your stomach acid was letting bacteria through in the first place.
Learn about SIBO and stomach acid →Your B12 is low. Your iron won’t budge. You take everything your practitioner recommends and your levels barely move. The problem may not be what you’re taking. It may be what your stomach isn’t doing with it.
Learn about nutrient malabsorption →Bloating after every meal. Undigested food. Fatigue that no one can explain. Your bloodwork comes back fine. Your endoscopy is clean. But something is clearly wrong and nobody can tell you what.
Learn about low stomach acid →The acid threshold
Drag the scale. Each job of stomach acid holds across a range of pH, then falls away as the stomach loses its acidity.
Illustrative thresholds drawn from published gastric physiology. For education, not diagnosis.
The reflux pathway
Heartburn and reflux can come from too much stomach acid, too little, or something else entirely. Which road your care takes depends on one thing: whether anyone measured your acid before treating it. Compare the two.
How reflux is usually managed. The standard guideline pathway most patients are put on: treat the symptoms with acid suppression first, and investigate only if that fails.
Heartburn, regurgitation, indigestion. You see a doctor.
Lifestyle advice plus a proton pump inhibitor, the standard acid blocking medication, for eight weeks. The assumption built in: you make too much acid. No one checks whether that is true.
Often kept on the medication long term. Yet the American Gastroenterological Association is clear that feeling better does not confirm acid was the cause. The trial is only 41 to 54 percent specific for reflux, a coin toss dressed up as an answer.
A long workup begins: endoscopy, then esophageal acid testing off medication, hunting for functional heartburn or other causes. Often many months later.
The blind spot
Every step assumed too much acid, yet that was never measured. If your acid is actually normal or low, blocking it further is the wrong direction, and the real cause stays hidden while the months pass.
The very same starting point. Heartburn, regurgitation, indigestion.
A real time reading of how much acid your stomach actually makes. One simple step, and now you hold a fact instead of a guess.
Acid suppression now fits
Your symptoms match the treatment. You and your physician move forward on evidence, not a hunch.
The payoff
You begin with data, not assumption. Fewer wrong turns, far less trial and error, and the right road sooner, chosen together with your physician.
Educational summary based on guidance from the American Gastroenterological Association on the evaluation and management of reflux. The Heidelberg pH test measures gastric acidity; it does not diagnose gastroesophageal reflux disease and is not a substitute for evaluation and care by your licensed physician.
Conditions
The condition behind the symptoms no one can explain.
→When heartburn is caused by too little acid, not too much.
→Why bacterial overgrowth keeps coming back.
→When the cells that make acid are being destroyed.
→A different problem that mimics acid reflux.
→What your stomach is actually doing after years of suppression.
→When supplements aren’t absorbing no matter what you try.
→The slow decline most people never discover.
→Visible evidence that something upstream isn’t working.
→When excess acid causes the same symptoms everyone blames on too little.
→When undigested proteins trigger your immune system.
→Inflammation that can push acid in either direction.
→When food leaves your stomach before it should.
→The anemia that starts in your stomach, not your blood.
→When excess acid keeps food trapped in the stomach.
→Why it matters
A single test can reshape the conversation between you and your practitioner.
Replace trial-and-error prescribing with a direct measurement of what your stomach is actually doing.
If acid is already low, suppressing it further makes things worse. The data shows which direction to go.
Bloating, reflux, SIBO, and deficiencies can all trace back to one cause. Knowing your acid status changes everything.
No more wondering whether the medication is right. You and your practitioner decide based on real evidence.
The technology
As the capsule streams your stomach’s pH, the Acid Tracker platform plots it live — every shift, as it happens. Your practitioner watches the full response unfold in real time, then walks you through exactly what it means for you.
See if the Heidelberg test is your next step.