14 Best and Worst Foods for Digestion
Coffee, tea, and soft drinks
Coffee, tea, and carbonated beverages not only over-relax the esophageal sphincter, which keeps stomach acid confined to the stomach, but they also can act as diuretics, which can lead to diarrhea and cramping, Anderson says.
Caffeinated beverages can be a particular problem, especially for people with gastroesophageal reflux disease (GERD).
If you have GERD or heartburn, you should avoid mint tea; it can, however, also calm the stomach, Anderson says.