Jin C, Lin L, Han N, et al. - In this retrospective cohort study, researchers compared the abilities of Intergrowth-21^st standards, Institute of Medicine (IOM) recommendations and a Chinese reference on gestational weight gain (GWG) to recognise women at risk of gestational diabetes (GDM) and adverse outcomes associated with GDM. Study participants included 13,366 women delivering live singleton infants in Tongzhou district of Beijing, China between 2013 to 2017. Findings revealed that there were 39.97%, 46.31% and 30.03% of women gaining weight above Intergrowth-21^st standards, IOM recommendations and the Chinese reference respectively. GWG above Intergrowth-21^st standards or the Chinese reference was associated with higher risks of GDM and GDM-related adverse outcomes compared with IOM recommendations. In addition, these two prospective standards could assess the severity of abnormal GWG and can be used for dynamic monitoring.