From 7 to 10 days, ordinary adults drink about 40 to 50 grams of milk powder every day and insist on drinking it every day. 400 grams of milk powder is the weight of 7 to 10 day. It is reasonable for China Nutrition Society to recommend 50 grams of milk powder every day in the Dietary Guide for China Residents. This amount of milk helps to balance the dietary structure and get more calcium. However, different brands of adult milk powder have different brewing guidelines and should be eaten correctly according to the product instructions.