Pasteurized Donor Milk for Newborns of Diabetic Mothers

Inclusion Criteria: Each participant must meet all the following criteria to be enrolled in this trial: * Mother is \>18 years at the time of consent * Mother has diabetes in pregnancy (type 1, type 2 or gestational diabetes) * Mother intends to breastfeed for at least 6 weeks at the time of consent. * Infant is born at ≥ 37 weeks and weighs \> 2.5kg * Clinician caring for infant decides that supplementary nutrition (in addition to maternal breast milk) is required within the first 48 hours after birth. * Parent/s provide/s a signed and dated informed consent form and has a legally acceptable representative capable of understanding the informed consent document and providing consent on the participant's behalf. Exclusion Criteria: Mother/infant pairs meeting any of the following criteria will be excluded from the trial: * Multiple pregnancy * Mother has a condition that precludes maternal breast milk consumption e.g. HIV, receiving chemotherapy * Infant has clinically significant congenital abnormality interfering with effective breastfeeding or breast milk consumption (e.g., cleft lip and palate, metabolic disorder) and/or requiring immediate care in a neonatal unit (e.g., congenital heart disease). * Infant has received infant formula prior to randomisation. * Infant admitted to neonatal intensive care prior to randomisation. * More than 48 hours old at the time of recruitment