Prenatal vitamins are designed for pregnancy, and plenty of women love taking them at other times too: while trying to conceive, between pregnancies, while breastfeeding, or simply because they like having one daily vitamin that covers a lot. The best choice depends on your stage of life, your diet and what's in the formula.
Key points
- A prenatal is a multivitamin with higher amounts of a few nutrients, mainly folate, iron, iodine and sometimes DHA.
- Public health agencies advise all women who could become pregnant to get 400 to 800 mcg of folic acid daily.
- The extra iron in many prenatals is more than most women need when they are not pregnant, and far more than what men or postmenopausal women need.
- Prenatals contain biotin, iron and other nutrients that support normal hair and nails.
How a prenatal differs from a regular multivitamin
Prenatal vitamins and standard women's multivitamins overlap a lot. The main differences are in a few nutrients that pregnancy calls for more of.
| Nutrient | Typical women's multivitamin | Typical prenatal |
|---|---|---|
| Folate | About 400 mcg DFE | 600–1,000 mcg DFE or more |
| Iron | 8–18 mg | 18–27 mg |
| Iodine | Often 150 mcg, sometimes none | Often 150–290 mcg |
| DHA | Usually none | Sometimes 100–300 mg |
Amounts vary by brand, so compare the Supplement Facts panels.
When taking a prenatal makes sense
While trying to conceive
This is the most common reason. The neural tube, which becomes the baby's brain and spinal cord, forms in the first few weeks of pregnancy, often before a woman knows she is pregnant. For this reason, the U.S. Preventive Services Task Force recommends that every woman who could become pregnant get 400 to 800 mcg of folic acid daily, from a supplement, fortified foods or both. Many women start a prenatal at least one month before trying to conceive to cover this.
Between pregnancies
Pregnancy and breastfeeding draw on the mother's stores of iron, folate and other nutrients. Women who plan another pregnancy fairly soon often stay on a prenatal to help rebuild those stores.
While breastfeeding
Recommended amounts of iodine and choline are higher while breastfeeding than during pregnancy, and the DHA in breast milk reflects the mother's diet. The American College of Obstetricians and Gynecologists notes that your ob-gyn may recommend continuing your prenatal while you breastfeed.
Mighty Mini's Supplement Facts panel: 800 mcg DFE of folate, 18 mg of iron and 100 mg of DHA in one small softgel.
When a different multivitamin may fit better
Iron you don't need
Women need 18 mg of iron a day during their menstruating years and 27 mg during pregnancy. After menopause the recommendation drops to 8 mg, and the same 8 mg applies to men. Taking a high-iron prenatal for years when your body doesn't need the extra iron can cause organ damage and is unsafe.
Men and children
Prenatals are formulated for women of childbearing age. Men and children do best with a multivitamin made for them.
Doubling up
If you also take a separate iron, vitamin A or vitamin D supplement, add up the totals and follow each label.
What about hair, skin and nails?
Prenatals are often recommended online for hair and nails. They contain biotin, iron and other nutrients that support normal hair and nails, and women who are low in those nutrients may notice a difference once their levels are back in range.
How to choose if you're not pregnant
- Trying to conceive or breastfeeding: a prenatal is a great choice. Look for folate, iodine and DHA.
- Planning a pregnancy within the next year or two: a prenatal with a moderate amount of iron is a common choice.
- Not planning a pregnancy: a women's multivitamin covers your daily needs with less iron.
- Postmenopausal: choose a multivitamin made for women over 50.
Take any multivitamin or prenatal with food, which helps your body absorb fat-soluble vitamins and makes iron easier on the stomach.
Zahler options
Mighty Mini Prenatal + DHA is one small softgel a day with 19 vitamins and minerals, 800 mcg DFE of folate as methylfolate, 18 mg of iron and 100 mg of DHA from algal oil. Its 18 mg of iron matches the daily recommendation for menstruating women, which makes it a great fit for women who are trying to conceive or between pregnancies and want a single small pill. It's certified Kosher Pareve under the supervision of Rabbi Shlomo Stern and the Orthodox Union.
For women who aren't planning a pregnancy, Zahler's Multivitamin One Daily and Multivitamin 50+ are made for everyday use.
One softgel a day
Mighty Mini Prenatal + DHA
★★★★★ 4.7 from 100+ reviews
19 vitamins and minerals plus 100 mg of DHA in one small softgel, taken with food. 30 or 90 softgels.
Shop Mighty MiniThis article is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider about your individual needs. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
Sources
- Mayo Clinic. "Folate (folic acid)."
- U.S. Preventive Services Task Force. "Folic Acid Supplementation to Prevent Neural Tube Defects: Recommendation Statement," 2023.
- American College of Obstetricians and Gynecologists. "Nutrition During Pregnancy" and "Breastfeeding Your Baby." ACOG patient FAQs.
- National Institutes of Health, Office of Dietary Supplements. Fact sheets: Iron, Folate, Vitamin A, Biotin.
- Zahler Mighty Mini Prenatal + DHA Supplement Facts panel.
