The precautions to be taken after barium meal include drinking plenty of water, exercising appropriately, eating a light diet, observing yourself for any discomfort, avoiding alcohol and overeating, etc. The barium meal is a medicinal barium sulfate that is taken orally for gastrointestinal imaging. Barium meal is medicinal barium sulfate, which is taken orally for gastrointestinal imaging examination. Barium meal is not absorbed by water and gastric mucosa, so it will be discharged from the body slowly and completely. Four hours after the barium meal test, you should eat porridge, rice soup and other liquid and semi-fluid food, if there is no discomfort then transition to normal diet, the diet should be light. After the examination, the barium meal should be discharged from the body as soon as possible. Drinking plenty of water and exercising appropriately will help to discharge the barium meal. At the same time, you should observe yourself for any discomfort and avoid drinking and overeating. If nausea, vomiting, abdominal pain and other uncomfortable symptoms occur, it is recommended to consult a doctor in time, with the help of the doctor to clarify the condition and carry out targeted treatment or therapy.