You can drink milk when eating watermelon, but you must drink a small amount of milk after eating watermelon, and drink warm milk instead of cold milk. Watermelon is rich in vitamins and trace elements, but it belongs to cold food. If you drink milk immediately after eating watermelon, especially cold milk and iced milk, there will be some discomfort in the digestive tract, such as acid reflux, heartburn, nausea, vomiting, nausea and abdominal pain, especially colic around the navel. So you can drink milk after eating watermelon, but you must drink a small amount of warm milk. However, for lactose intolerance patients, there is a congenital lactase deficiency in the body. Patients who are prone to diarrhea after drinking milk should not drink milk after eating watermelon, otherwise lactose intolerance will be aggravated, and severe symptoms such as diarrhea, nausea and vomiting will occur.

It should be noted that it is not recommended to drink milk immediately after eating watermelon, because watermelon and milk are both cold foods, and it is easy to cause diarrhea when entering the intestine. Moreover, milk contains a lot of protein, and watermelon contains a lot of vitamin C. When protein and vitamin C are ingested together, it will cause precipitation in the gastrointestinal tract of the body, which is not conducive to digestion and easily leads to constipation. If you eat together often, it will easily lead to gallstone disease. Milk is rich in nutrition, but some substances in watermelon will destroy the structure of protein. Eating together will affect the body's absorption of nutrients. Not only that, but other fruits are not recommended to be eaten with milk. It is suggested that drinking milk after eating fruit 1 hour can prevent diarrhea and abdominal pain, and is also beneficial to the body's absorption of nutrients.