For people with sensitive stomachs, drinking black coffee on an empty stomach may hurt the stomach. Black coffee belongs to a kind of stimulating food, drinking on an empty stomach will produce stimulation of the gastric mucosa, leading to nausea, vomiting, heartburn, acid reflux and other symptoms, and when the situation is serious, there may be chest tightness, palpitations and other symptoms. Therefore, for safety reasons, it is not recommended to drink black coffee on an empty stomach. Usually want to drink black coffee, it is recommended to eat something appropriate before drinking, so as not to have an impact on the health of the body. In addition, drinking black coffee should also pay more attention to the amount, so as not to intake too much, increase the burden on the gastrointestinal tract, gastrointestinal discomfort symptoms. Drinking a lot of black coffee for a long time may also accelerate calcium loss and induce osteoporosis. Individuals can drink black coffee in moderation according to their own situation.