If the elderly drink too much milk or milk powder, it will cause a series of symptoms such as small intestinal flatulence, abdominal pain, bowel sounds and diarrhea, which is medically known as "adult primary lactose malabsorption". In addition, people who consume excessive amounts of milk and take excessive amounts of calcium salts or alkaline drugs (such as baking soda) for a long time may also cause hypercalcemia and alkalosis syndrome, which is medically known as "milk-alkali syndrome". Symptoms include headache, dizziness, nausea, vomiting, fatigue, food fear, thirst, polyuria, and renal colic. In severe cases, depression or confusion may occur.

How much milk should the elderly drink? This is related to the level of lactase activity in each person's body. But generally speaking, each person should not exceed 200 ml (about 200 grams of milk powder) per day. For the elderly, it is best to eat yogurt and cheese. Their nutritional value is not lower than that of milk, but the lactose content is much reduced. It is not only delicious, but also easy to digest and absorb, especially suitable for the elderly after illness.