Level 1: Premature infants need to drink special formula milk powder. Premature infants refer to infants whose gestational age is less than 37 weeks at birth. Since the gastrointestinal function of premature infants has not been fully developed, they cannot digest and absorb the nutrients in ordinary formula milk powder like full-term infants. Therefore, premature infants need to drink special formula milk powder that can better meet the nutritional needs of premature infants. Level 2: Choose special formula milk powder suitable for premature infants. Premature infants need to drink special formula milk powder. However, there are many kinds of special formula milk powder on the market. How to choose the one suitable for your baby? First of all, according to the treasure