02/24/2026
Vitamin D and pregnancy.
“Vitamin D is one of the most critical and under-addressed nutrients in pregnancy. A simple blood test called 25-hydroxyvitamin D can show whether your levels are optimal. While most labs consider 30 ng/mL to be “normal,” emerging research suggests that levels closer to 40–60 ng/mL are ideal for maternal and fetal health. Vitamin D is essential not only for bone development, but also for immune function, brain development, and the regulation of inflammation. Low prenatal vitamin D levels have been associated with higher risk of preterm labor, impaired language development, and even autism spectrum disorder. Vitamin D also influences fetal immune system programming, which can affect long-term risk of autoimmune conditions and allergies.
Supplementing to reach optimal levels—ideally before conception—can make a powerful difference.” — Brittany Blockman, MD
Integrative pediatrician Brittany Blockman, MD experienced how hard it is for parents to find clear, proactive guidance on optimizing a baby’s health before birth, revealing a major gap in our disease-focused medical system. From vitamin D and iron to DHA, magnesium, probiotics, and reducing toxin exposure, the research is clear: early, intentional support in pregnancy can profoundly shape lifelong outcomes for both mother and child.
✨ Keep reading “Before the First Breath: An Integrative Pediatrician’s Prenatal Blueprint for Lifelong Health” in the current issue of Pathways now: https://pathwaystofamilywellness.org/pregnancy-birth/before-the-first-breath-an-integrative-pediatricians-prenatal-blueprint-for-lifelong-health.html
