Does coffee cause gastrointestinal problems? My sister, she got gastritis when she drinks coffee she feels poignant in the area of her stomach. So, I want to know that why do people who have gastrointestinal problems when having coffee got to have stomach ache?
In the article titled "Coffee and gastrointestinal function: facts and fiction. A review.", it is stated that it has pharmacological effects and coffee promotes gastro-oesophageal reflux.

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