For those who are sensitive to caffeine, it is usually not recommended to drink black coffee in the morning on an empty stomach because it contains caffeine components that can cause irritation to the mucous membranes of the gastrointestinal tract.
Black coffee is coffee without added sugar and creamer, its flavor is more bitter, and the caffeine it contains can stimulate the cerebral cortex to produce excitement. Drinking coffee in the morning helps to refresh the brain and relieve fatigue.
However, it is not recommended to drink black coffee in the morning on an empty stomach, because caffeine will stimulate the sympathetic nerve, so that the gastric mucosa secretes excessive gastric acid, which in turn stimulates the mucosa of the gastrointestinal tract. Especially gastric ulcer, chronic gastritis people, drinking coffee on an empty stomach can aggravate abdominal pain, nausea, acid reflux, heartburn and other gastrointestinal discomfort symptoms.
In short, it is recommended to avoid drinking black coffee on an empty stomach in the morning, and you can drink coffee with food such as bread and eggs. In addition, drinks such as strong tea and hot cocoa are not recommended on an empty stomach.