Nutrition Diva Fact check: Is it bad to drink coffee on an empty stomach?
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Jan 7, 2026 Is drinking coffee on an empty stomach really bad for you? It turns out the claims about coffee's acidity are misleading. While coffee does stimulate gastric acid, your stomach is designed to handle it. For most people, empty-stomach coffee won't cause irritation or discomfort. Interestingly, caffeine effects are all about sensitivity and dosage rather than just how hungry you are. Plus, opting for a dark roast or cold brew can be easier on the stomach. The main takeaway? If it feels fine, drink up!
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Host's Morning Coffee Routine
- Monica Reinagel starts every morning with black coffee on an empty stomach and sometimes two cups before breakfast.
- She often goes to the gym and delays breakfast until mid-morning, sharing her personal routine that frames the episode.
Coffee Is Mildly Acidic, Not Harmful By Default
- Brewed black coffee is only mildly acidic with an average pH around 5, similar to squash or a banana.
- Coffee's acids and caffeine can stimulate gastric acid secretion but the stomach is designed to handle highly acidic conditions.
Reflux Is Individual, Not Universal
- Coffee can trigger reflux in susceptible people, but triggers vary widely between individuals.
- If coffee causes no discomfort for you, drinking it on an empty stomach likely isn't harmful.