Higher-Dose Prenatal Vitamin D Linked to Memory Scores
Children exposed to higher-dose prenatal vitamin D scored modestly higher on verbal and visual memory tests at age 10 years, although overall intelligence and most cognitive measures did not differ significantly.
By
Andrea Surnit
June 11, 2026
Clinical Scorecard: Higher-Dose Prenatal Vitamin D Linked to Memory Scores
At a Glance
Category Detail
Condition Prenatal Vitamin D Supplementation Key Mechanisms Higher-dose vitamin D3 supplementation during pregnancy Target Population Pregnant women, particularly those at 24 weeks' gestation Care Setting Clinical trial setting
Key Highlights
Higher-dose vitamin D3 (2,800 IU/d) linked to higher verbal and visual memory scores in children at age 10. No significant differences in estimated intelligence or most cognitive functions between higher-dose and standard-dose groups. Cognitive analysis was post hoc and not prespecified as a primary outcome. Findings suggest modest associations with memory measures after adjustment for multiple factors. Cohort predominantly White and relatively vitamin D sufficient, limiting generalizability. Guideline-Based Recommendations
Diagnosis
Monitor maternal vitamin D levels during pregnancy. Management
Consider higher-dose vitamin D supplementation during pregnancy. Monitoring & Follow-up
Assess child cognitive outcomes at age 10. Risks
Limited exposure contrast may affect outcomes; findings may not apply to vitamin D-deficient populations. Patient & Prescribing Data
Pregnant women at 24 weeks' gestation
Higher-dose vitamin D3 supplementation may improve verbal and visual memory in offspring.
Clinical Best Practices
Ensure adequate vitamin D levels in pregnant patients. Consider the timing of supplementation initiation. Related Resources & Content
