After drinking milk, it is generally recommended not to drink tea. From a nutritional point of view, besides protein, milk is also rich in calcium ions, while tea contains certain oxalic acid, which is easy to produce calcium salt when combined with calcium ions, while protein will form protein precipitate when combined with acidic substances, which will accumulate in the intestine, causing bloating, diarrhea and other phenomena, which is not conducive to health. Moreover, it will increase the burden on the kidneys, so that calcium ions in the body are missing, which is easy to cause osteoporosis.