Could a formula closer to breast milk boost baby development?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria： Breastfed Group Infants eligible for the breastfed reference group must meet all of the following criteria: * Aged 0 to 28 days after birth (inclusive). * Singleton birth. * Gestational age between 37 and 42 weeks (inclusive). * Birth weight between 2500 and 4000 grams (inclusive). * Parent(s) or legal guardian(s) agree that the infant will not participate in any other interventional clinical studies for the duration of this trial. * Parent(s) or legal guardian(s) agree to feed the infant according to the trial protocol (i.e., breastfeeding). Formula-fed Group Infants eligible for the randomized formula-fed groups must meet all of the following criteria: * Aged 0 to 28 days after birth (inclusive). * Singleton birth. * Gestational age between 37 and 42 weeks (inclusive). * Birth weight between 2500 and 4000 grams (inclusive). * Parent(s) or legal guardian(s) agree that the infant will not participate in any other interventional clinical studies for the duration of this trial. * Parent(s) or legal guardian(s) agree to feed the infant according to the trial protocol. * For objective or subjective reasons, the mother is unable to provide exclusive breastfeeding. Exclusion Criteria： Infants will be excluded from the trial if they meet any of the following criteria: * Conceived through assisted reproductive technology. * Maternal history of any condition during pregnancy known to compromise intrauterine growth. * Maternal history of gestational diabetes, significant metabolic disease, or chronic disease during pregnancy. * Presence of congenital malformations, genetic disorders, chronic diseases, or congenital conditions that could interfere with the study participation or outcome assessments. * Known IgE-mediated cow's milk protein allergy, or presence of factors that increase the risk of cow's milk protein allergy. * Active acute infection or gastroenteritis at the time of enrollment. * History of functional gastrointestinal disorders, such as gastroparesis. * Concurrent participation in another clinical trial. * Any condition that, in the investigator's judgment, could compromise the parent's willingness or ability to comply with the protocol requirements.