Adherence to recommendations for nutrient supplementation related to pregnancy in Germany

Supplementation of certain micronutrients is recommended to ensure their adequate supply during pregnancy and lactation. In Germany, this applies particularly folic acid iodine. There no nationwide data on adherence the supplementation guidelines. The aim cross-sectional study was determine prevalence predictors both iodine in mothers a birth cohort. Data supplementation, before, during, shortly after pregnancy, were collected retrospectively 14 days postpartum sample 962 mother–infant pairs participating second breastfeeding infant nutrition called “SuSe II” (2017–2019). Folic classified as according German guidelines if provided for essential periods: before Univariable tests multivariable logistic regression analysis performed. vast majority did not adhere recommendations, with only 36.2% supplementing 31.9% periods, 15.2% adhering recommendations nutrients. Main nutrients lifestyle attributes nutrition-related intentions like previous experience intentions, but common sociodemographic characteristics. suggest widespread dissemination time-specific covering entire period from preconception lactation that could help sensitize women healthcare providers.