Drinking tea in the morning on an empty stomach has the following hazards to the body: 1, will obviously stimulate the digestive tract and lead to the burning of the gastric mucosa, burning caused by excessive reflux of gastric acid, there will be acid reflux, heartburn, nausea, vomiting, regurgitation, etc. are the hazards of drinking tea on an empty stomach. 2, get up in the morning and drink tea on an empty stomach, the theophylline in tea will be quickly absorbed into the blood, there will be excessive sensitivity of the nervous system such as 3, if long-term morning fasting tea will lead to digestive and absorption system disorders, such as diarrhea and even malabsorption of nutrients are among the hazards of morning fasting tea.