Proton pump inhibitor
Also called: PPI, omeprazole, pantoprazole
What it means
A proton pump inhibitor (PPI) is a medication like omeprazole or pantoprazole that reduces stomach acid to treat heartburn and acid reflux.
Long-term PPI use has been linked to a modest increase in hip and spine fracture risk, which matters if you're already working on bone health.
Proton pump inhibitors work by lowering the amount of acid your stomach produces, which helps calm heartburn and reflux. Common examples are omeprazole and pantoprazole. They're widely used and effective for their intended purpose, but large observational studies have found an association between long-term PPI use and a modest increase in hip and spine fracture risk.
The proposed reason has to do with calcium: calcium carbonate, a common supplement form, needs stomach acid to dissolve before your body can absorb it. With acid suppressed over the long term, that absorption can be measurably lower. Stomach acid also naturally declines with age for many people, so PPI use can add to that effect. The overall relationship is still debated, and the absolute risk increase is described as small, but it's a relevant factor for anyone already managing bone loss risk, especially after years on the medication.
If you take calcium supplements while on a PPI, calcium citrate doesn't require stomach acid to be absorbed, making it a reasonable alternative to calcium carbonate, and taking calcium with food is generally helpful too. None of this means you should stop or change a PPI on your own — that decision belongs with your prescriber. It is, however, reasonable to ask your doctor whether you still need the medication, at what dose, and for how long.
How sure is this?
Graded Strong Clinical Evidence: Supported by multiple well-designed clinical studies in humans. Read each study with its grade in mind. One study is a piece of the picture, not the whole of it.
Where the Academy teaches it
This page is the short version. The lessons teach it in full, with the context around it and a quiz to lock it in.
Questions people ask about this
Yes, it's possible — a number of common medications can affect bone, so it's a smart question to ask. This doesn't mean you should change anything on your own; it just means it's worth reviewing your full medication list with your prescriber to understand whether bone monitoring makes sense for you.
Read the full answer →Eating well and taking supplements only helps your bones if your gut actually absorbs what you swallow — and for many people, especially past 60, that absorption step is where things quietly break down. Lower stomach acid, certain medications, undiagnosed digestive conditions, or just poor timing of your supplements can all mean you're taking the right things but not getting them into your bloodstream. The good news is this is often one of the most fixable parts of a bone plan.
Read the full answer →Related words
Calcium is the main building-block mineral in bone, and since your body can't make it, you need to get it from food…
Vitamin D is a nutrient that helps your gut absorb calcium so it can be used to build and maintain bone.
Chronic kidney disease is a long-term decline in kidney function that can disrupt vitamin D activation and the…
Celiac disease is an autoimmune condition that damages the small intestine, often reducing absorption of calcium,…
Bariatric surgery (gastric bypass or sleeve) changes digestion in ways that can speed up bone loss, mainly through…
Education only, not medical advice. Decisions about tests, medications and treatment belong with your own doctor. OsteoStrong does not diagnose, treat or cure any disease.
