 Gestational diabetes mellitus, GDM, is a condition where women develop high blood sugar levels during pregnancy. It is estimated that up to 14% of pregnancies worldwide are affected by GDM. The causes of GDM are not fully understood, but it has been suggested that disruption of the gut microbiota could play a role. This study investigated the gut microbiome of pregnant women with GDM and healthy pregnant women without GDM. The researchers found that the gut microbiome of pregnant women with GDM was significantly different from that of healthy pregnant women. They also identified specific bacteria that were associated with GDM and linked them to certain metabolic processes. The findings suggest that alterations in the gut microbiome may contribute to the development of GDM. This article was authored by Zhonghan Sun, Zhongfei Pan, Shaoli, and others.