Whether it’s powdered milk or milk, middle-aged and older people can drink it. Compared to younger age groups, middle-aged and elderly people generally suffer from deficiencies in nutrients such as calcium and protein, and dairy products such as milk powder and milk are a healthy and economical source of daily supplementation of such nutrients. Every 100g of milk powder contains about 19.9g of protein and 797mg of calcium (varies from brand to brand); while every 100g of milk contains about 3g of protein and 104mg of calcium, which can be chosen by middle-aged and elderly people according to their own preferences. It should be noted that middle-aged and elderly people with high blood fat, diabetes and other diseases, drinking whole milk/milk powder is easy to cause excessive calorie intake, can be appropriate to drink skimmed milk products. However, those who are lactose intolerant or allergic to milk should avoid dairy products.