Beverages, coffee, instant, regular, half the caffeine
per 100 g
Food facts
Acidity alone doesn't predict reflux. Some foods provoke symptoms without being acidic, and acidic foods don't bother everyone.
Sources: U.S. Department of Agriculture, Agricultural Research Service. FoodData Central (SR Legacy). Public domain (CC0 1.0).
Measured caffeine mg 100 (1571)
Research
Laboratory studies found coffee and caffeine have little or no effect on the valve between the food pipe and stomach, though some people find them irritating.
ACG Clinical Guideline for the Diagnosis and Management of Gastroesophageal Reflux DiseaseA review of 15 studies found no clear link between drinking coffee and reflux disease.
Association between coffee intake and gastroesophageal reflux disease: a meta-analysisCommonly reported
Coffee is one of the drinks people with reflux most often say sets off their symptoms. The NHS lists it as a cause for some people.
Heartburn and acid refluxPortion and timing
A large portion on an empty stomach is not the same exposure as a small amount after food.
Not medical advice and not a diagnosis. If you are worried about your symptoms, speak to a doctor or pharmacist.
General information about this food, with its sources. Foods affect people differently. This is not dietary or medical advice.