12 Ingredients to Look for in a Prenatal Vitamin

A high-quality prenatal should meet the increased daily needs of pregnancy for folate, iron, choline, DHA, and several other nutrients. Formulas vary widely between brands, so knowing what to check for on the label helps you compare options with confidence. Here are the 12 ingredients worth prioritizing.

Always consult your healthcare provider before starting any new supplement, especially during pregnancy, breastfeeding, or while managing a medical condition.

1. Methylated folate (5-MTHF)

Folate supports healthy fetal neural tube development and is one of the most time-sensitive nutrients in early pregnancy.† The methylated form, 5-MTHF, is the bioavailable form the body uses directly, without requiring conversion. Our prenatal with methylated folate and gentle iron uses this form for every serving.

2. Iron in a gentler, chelated form

Iron supports healthy iron status during pregnancy, when blood volume increases significantly.† ACOG notes that pregnancy iron needs rise from 18 mg to 27 mg per day. Chelated forms like iron bisglycinate are formulated to be gentler on digestion than standard ferrous sulfate.

3. Choline

Choline supports healthy fetal brain and spinal cord development, and it's a nutrient many prenatal formulas leave out entirely.† Checking the label specifically for choline is worth the extra minute.

4. Omega-3 DHA

DHA supports healthy fetal brain and eye development.† Algae-sourced DHA offers a vegan, mercury-free alternative to fish oil, and a prenatal that includes it in each serving means a separate DHA supplement usually isn't necessary.

5. Vitamin D3

Vitamin D3 supports maternal bone health and immune function during pregnancy.† Mayo Clinic lists vitamin D alongside calcium as essential for supporting your baby's developing bones and teeth.

6. Vitamin B12

Vitamin B12 supports healthy energy metabolism and nervous system function during pregnancy.† It's especially worth checking for in a methylated form (methylcobalamin) if you follow a plant-based diet.

7. Vitamin B6

Vitamin B6 supports healthy fetal brain development and helps maintain a steady mood during pregnancy.† It's also one of the nutrients most associated with easing occasional pregnancy-related nausea, which we cover in more depth elsewhere.

8. Calcium

Mayo Clinic notes calcium works alongside vitamin D to support your baby's developing bones and teeth. Many prenatals include a partial dose since full calcium needs are difficult to fit into one capsule.

9. Iodine

Iodine plays a role in supporting healthy maternal thyroid function and fetal brain development.† NIH's Office of Dietary Supplements lists iodine among the nutrients with meaningfully increased needs during pregnancy.

10. A conservative vitamin A dose

This one is about what to avoid as much as what to look for. Excess preformed vitamin A can be teratogenic, so a prenatal formulated with vitamin A safety in mind, often using beta-carotene instead of high-dose retinol, is worth prioritizing.† NIH's Vitamin A fact sheet outlines this distinction in detail.

11. Third-party testing certifications

Because supplement manufacturing isn't as tightly regulated as pharmaceuticals, third-party testing matters. Look for ISO 17025 accredited lab testing and cGMP-certified manufacturing on the label or product page.

12. A format you'll actually take consistently

The best prenatal is the one you take every day. Capsules, gummies, and liquids all have tradeoffs in nutrient density and digestive tolerance, so factor your own routine and sensitivities into the decision.

"Whenever someone wants to pick up a supplement, make sure it's being made by a reputable organization."

— Dr. Jummy Amuwo, Pharm.D., MPH, BCPS, Clinical Pharmacist and Board Certified Pharmacotherapy Specialist

Total Prenatal is third-party tested at ISO 17025 accredited labs, made in cGMP-certified facilities, and formulated with methylated folate, choline, non-constipating iron, and algae DHA in a single serving.† For a closer look at how prenatal nutrient needs compare to a standard multivitamin, see our guide on how prenatals and multivitamins differ. If timing is your bigger question right now, our piece on when to start taking a prenatal covers that separately, and our own best prenatal multivitamin guide compares full formulas side by side.

"Every Pink Stork product is not only backed by science, it's also covered in prayer."

— Amy Suzanne Upchurch, Founder and CEO of Pink Stork

Frequently Asked Questions

Do I need every one of these 12 nutrients from my prenatal specifically?

Not necessarily from the prenatal alone. Diet contributes to your overall intake, but prenatals are designed to fill common gaps, especially for folate and iron, which are hard to reach through food alone during pregnancy.

Why does the form of folate matter?

Some women don't efficiently convert synthetic folic acid into its active form. Methylated folate (5-MTHF) bypasses that conversion step, which is why some providers recommend it specifically.†

Is more vitamin A always better in a prenatal?

No. Excess preformed vitamin A during pregnancy carries specific safety concerns, so a conservative dose is preferable to a high one.

What if my prenatal doesn't include DHA?

Some formulas require a separate DHA supplement. Check your label carefully, or ask your provider whether you need to add one.

How do I know if a prenatal is third-party tested?

Look for ISO 17025 accreditation or cGMP certification listed on the product packaging or brand's website. If it isn't listed, it's reasonable to ask the manufacturer directly.

† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any new supplement, especially during pregnancy, breastfeeding, or while managing a medical condition. Keep out of reach of children.