There is no such thing as what food is best for the elderly nocturia, this phenomenon may be a physiological phenomenon caused by drinking too much water before going to bed, or urinary tract stones, urinary tract infections caused by the need to take tamsulosin, cefuroxime, benzoxiline and other drugs. 1. Physiological phenomenon: If the elderly always drink too much water before going to bed, the total amount of urine and nocturia will increase, which is a normal physiological phenomenon, no need for treatment. 2. Prostatic hyperplasia: the most common cause of nocturia in the elderly is prostatic hyperplasia, at this time, eating food is ineffective, and you need to apply drugs such as doxazosin, tamsulosin, or surgical treatment. 3. Urinary stones: common symptoms include back pain, urinary pain, hematuria, etc. Patients need to take tamsulosin and other alpha-blockers as prescribed by the doctor. If the uric acid stones, need to follow the doctor’s instructions to take potassium citrate, sodium bicarbonate and other drugs, to a certain extent, to help the discharge of stones, improve the symptoms of nocturia. . Urinary tract infection: common symptoms include frequent urination, urinary urgency, painful urination, etc. In severe cases, it is manifested as chills, frequent urination, generalized pain and so on. Usually elderly patients need to follow the medical advice to take cefuroxime, cefotiophene, cefazolin and other cephalosporin antibiotics, or benzoxacillin, cloxacillin, dicloxacillin and other penicillin drugs. Secondly, the elderly nocturia need to avoid eating watermelon, winter melon, green beans, cucumber and other foods before going to bed, drink water appropriately, and develop a good habit of going to the toilet before going to bed. To sum up, the elderly who have excessive nocturia should go to the hospital if they exclude physiological phenomena, cooperate with the doctor to actively treat, and avoid taking drugs without authorization to avoid adverse consequences.