My son was 3 years old and 3 months off milk powder for a month, every day is not good to eat, the old mother is afraid of nutrition can not keep up, today ran to the mother and baby store to buy 4 barrels of milk powder, a month straight to 4 figures, a total of 13

My son was 3 years old and 3 months off milk powder for a month, not eating well every day, the old mother was afraid that nutrition could not keep up, and today she ran to the mother and baby store to buy 4 barrels of milk powder, a month straight to 4 figures, a total of 1352. Think about these four figures, buy a few less durians and save it. How old is your baby's formula? What brand of milk powder is drunk?