Pregnant individuals with inflammatory bowel disease (IBD) have higher levels of pro-inflammatory immune molecules, known as cytokines, in their vaginal mucosa than their healthy counterparts, according to a new study published January 14, 2026 in the open-access journal PLOS One by Ana Maldonado-Contreras of University of Massachusetts Chan Medical School, U.S., and colleagues. However, the study also suggested that higher-quality diets, with more vegetables and fewer added sugars, are associated with lower levels of pro-inflammatory cytokines in pregnant women both with and without IBD.
