January 19, 2026
Preconception vs. Prenatal Vitamins: Key Differences
Preconception vitamins prepare the body for pregnancy with nutrients like folic acid and vitamin D, while prenatal vitamins support early pregnancy and fetal development. Dr. Eric Widra emphasizes starting preconception vitamins at least one month before conception to reduce neural tube defects by 36%.
Key Takeaways
Preconception Vitamins vs. Prenatal Vitamins: What’s the Difference?
Preconception vitamins focus on fertility preparation with higher folate and vitamin D, while prenatal vitamins prioritize pregnancy with added iron and DHA. Begin preconception supplements at least a month before trying to conceive for optimal results.
Essential Nutrients for Preconception: Folate, Vitamin D, and More
A preconception vitamin should include 400 mcg of folic acid (to prevent neural tube defects) and vitamin D (linked to 6% higher IVF success rates). Methylated folate is recommended for women with MTHFR genetic mutations.
Why Vitamin D Matters for Preconception and IVF Success
Vitamin D deficiency correlates with lower IVF success rates. Shady Grove Fertility tests patients’ levels and recommends supplementation to achieve >30 ng/ml, as each unit increase raises pregnancy rates by 6%.
CoQ10 and DHEAS for Women with Advanced Maternal Age
CoQ10 may improve egg quality in older women by boosting cellular energy, while DHEAS (75 mg daily for 4–12 weeks) can enhance IVF outcomes for those with diminished ovarian reserve, based on animal and limited human studies.
When to Transition to Prenatal Vitamins: A 10-Week Guide
Switch to prenatal vitamins by 10 weeks of pregnancy to meet increased iron (27 mg) and DHA (250–300 mg) needs. Traditional prenatal supplements support fetal brain development and reduce preterm birth risks.
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