Maternal Caffeine Consumption and Pregnancy Outcomes

Area of Science:

• Obstetrics and Gynecology
• Perinatal Medicine
• Public Health

Background:

• Caffeine is widely consumed by pregnant women despite lacking nutritional value.
• Existing guidelines often permit moderate caffeine intake during pregnancy.
• Concerns exist regarding caffeine's impact on fetal development and maternal health.

Purpose of the Study:

• To review evidence associating maternal caffeine consumption with adverse pregnancy outcomes.
• To evaluate the consistency of current advice with scientific findings.
• To provide evidence-based recommendations for pregnant women.

Main Methods:

• Focused narrative review of empirical studies, systematic reviews, and meta-analyses.
• Analysis of associations between caffeine intake and various pregnancy outcomes.
• Assessment of dose-response relationships and potential confounding factors.

Main Results:

• Strong evidence links maternal caffeine intake to miscarriage, stillbirth, and low birth weight/small for gestational age.
• Less robust evidence suggests associations with childhood leukemia, obesity, and developmental issues.
• Preterm birth risk does not appear to be elevated; no safe consumption threshold identified.

Conclusions:

• Maternal caffeine consumption is reliably associated with significant negative pregnancy and offspring outcomes.
• Current recommendations allowing "moderate" caffeine intake are inconsistent with the evidence.
• Pregnant women and those planning pregnancy should avoid caffeinated products.