Date	Event	Description
9 February 2018	New citation required but conclusions have not changed	A supplementary search was carried out in February 2018. No new studies were identified. The main conclusions of the original review remain unchanged.
23 January 2018	New search has been performed	We updated the search for eligible studies to February 2018. We found no new randomised controlled trials eligible for inclusion in this review. We included body mass index and measures of body composition in the growth parameters of the primary outcome. We also included new secondary outcome measures: long‐term measures of cardio‐metabolic health (such as insulin resistance, obesity, diabetes and hypertension). These outcomes were aligned with those of the Cochrane Review Multi‐Nutrient Fortification of Human Milk for Preterm Infants Brown 2016. We incorporated the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach to assess the quality of evidence.