QUESTION

What causes stomach pain after coffee?

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Asked May 31, 2026
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Answer80% confidence

Stomach pain after drinking coffee is fairly common, and it can happen for a few reasons:

  1. Coffee can irritate a sensitive stomach. Coffee may bother some people’s stomach lining or make existing irritation feel worse, especially if they already have gastritis, acid reflux, or an ulcer.

  2. Coffee can trigger gut activity. It can speed up digestion and stimulate the colon, which may cause cramping, urgency, or discomfort in some people.

  3. Coffee may worsen reflux symptoms. In some people, coffee can aggravate heartburn or upper abdominal discomfort.

  4. Drinking it on an empty stomach can make symptoms more noticeable. If you’re sensitive, having coffee without food may feel harsher than having it with a meal.

  5. Add-ins may be the real cause. Milk, cream, sugar alcohols, or artificial sweeteners can cause bloating, gas, or cramping if you’re lactose intolerant or sensitive to them.

What may help:

  • Try coffee with food instead of on an empty stomach.
  • Reduce the amount or switch to decaf.
  • Try cold brew or a less irritating coffee for you.
  • If you use dairy, test whether a non-dairy option helps.

If the pain is severe, recurring, or comes with black stools, vomiting, or unexplained weight loss, get checked by a healthcare professional.