No, but you should not drink milk if you have stones.

Zhang Dazhao, an attending physician at the Department of Urology at the Second Affiliated Hospital of Anhui Medical University, said that urinary system stones include kidney stones and urinary tract stones. When a person is in a supine position during sleep, the urine output decreases and the concentration of various tangible substances in the urine increases. At this time, the urine is in a concentrated state. Milk contains more calcium, and most kidney stones contain calcium salts.

The most dangerous factor for stone formation is a sudden increase in calcium ion concentration in the urine within a short period of time. 2-3 hours after drinking milk, it is the peak of calcium elimination through the kidneys. If you are in a sleep state at this time, the urine is concentrated, the water content is reduced, and more calcium is excreted through the kidneys, so it is easy to form stones.

Doctors recommend that patients with kidney stones or urinary tract stones who need to drink milk can drink it 4 hours before going to bed at night or during the day. In addition, do not choose high-calcium milk. "The prevention of stones requires individualized assessment of stone composition and metabolism. For example, patients with uric acid stones should not drink soy milk. The best drink for stone patients is boiled water, and they should drink it in large quantities. In addition, they can also drink more lemon water."

Extended information:

These people should not drink milk before going to bed:

1. Kidney stone patients

The most dangerous factor for stone formation is calcium in the The concentration in urine suddenly increases in a short period of time. 2 to 3 hours after drinking milk before going to bed, the peak of calcium in the milk is excreted through the kidneys. At this time, you are in a sleep state, the urine is concentrated, and more calcium passes through the kidneys, making you prone to stones.

2. People who lack lactase in the body

The lactose content in milk is very high. Lactose cannot be directly absorbed by the human body and must be hydrolyzed into galactose and galactose under the action of lactase in the digestive tract. Glucose can be absorbed. If lactase is deficient, lactose cannot be absorbed.

3. People suffering from certain digestive tract diseases

Recent research shows that milk can promote gastric acid secretion better than ordinary food, thus aggravating and inducing digestive tract diseases. Therefore, people suffering from gastric and duodenal ulcers, ulcerative colitis, cholecystitis and other digestive tract diseases are best not to drink milk.

4. Abdominal surgery patients

For such people, drinking milk will cause intestinal flatulence, which is not conducive to postoperative recovery.

5. People who are taking iron medication

When you are taking iron medication to treat iron deficiency anemia, if you drink milk, the calcium and phosphate in it will interact with the iron. The combination of drugs affects the efficacy of the drug.

6. Lead workers

The lactose in milk can promote the absorption and accumulation of lead in the human body, causing pain and diarrhea. This aggravates and causes lead poisoning in the body, causing symptoms such as dizziness, insomnia, and fatigue.

People's Daily Online - Patients with urinary system stones should not drink milk before going to bed

People's Daily Online - Milk taboos: 6 types of people should not drink milk before going to bed