It is usually not recommended to drink milk and then immediately eat bananas, if immediately after drinking milk will cause the following effects on the human body: 1, for lactose intolerance, or after drinking milk will appear habitual diarrhea patients, drinking milk and eating bananas will lead to osmotic diarrhea, secretory diarrhea and infectious diarrhea aggravation and intensification of the situation, at this time, there will be obvious acid reflux, flatulence, nausea, vomiting, watery stools, and even mucus-pus-blood stools. Because milk and bananas at the same time belong to be able to strengthen the gastrointestinal tract peristalsis, lubricate the intestines, and promote the effect of laxative. 2, eating bananas after drinking milk will reduce the bioavailability of bananas and milk, because milk is rich in protein, and bananas are rich in a variety of ions and trace elements, so you should take bananas 30-45 minutes after drinking milk, so that both the protein can be effectively absorbed, and thus will not prevent the banana from being further utilized by the body.