Chen LW, et al. - Investigators studied data from 941 Irish mother-child pairs of the Lifeways Cross Generation Cohort Study to analyze the relationship between maternal caffeine intake and birth outcomes in a population with tea as the predominant source of caffeine. Maternal caffeine intake was correlated with lower birth weight, shorter birth length, smaller head circumference, and shorter gestational age. In addition, higher risks were observed for low birth weight (LBW) and preterm birth (PB). Similar higher risks of adverse birth outcomes were noted for the highest caffeine intake categories from coffee and tea vs the lowest intake categories. Findings suggested that maternal caffeine intake from both coffee and tea was related to adverse birth outcomes.