The Ultimate Guide to Choosing the Best Prenatal Vitamins
Written by Jess Rosenberg, moode Founder | Reviewed June 2026
When I started researching prenatal vitamins before my second pregnancy, I expected to find a clear answer. What I found instead was a market full of products making identical claims with vastly different formulations. Most prenatals contain folic acid rather than an active form of folate. Most leave out choline entirely. Most include iron as a blanket ingredient regardless of whether the woman taking it actually needs it. And most come in capsules the size of a small boat.
I created moode because I could not find a prenatal I trusted. But this guide is not about selling you ours. It is about giving you the information to read any prenatal label and make a genuinely informed choice.
What prenatal vitamins actually are
A prenatal vitamin is a multivitamin formulated specifically for the demands of preconception, pregnancy and postpartum. The distinction from a standard women's multivitamin matters: a prenatal should contain the specific nutrients needed in higher amounts during this period, in the forms the body can actually use, at doses that reflect what the evidence supports.
Not all prenatals do this. Many are reformulated general multivitamins with a folate bump and a pregnancy-friendly label. The difference between a good prenatal and an average one is in the formulation detail, not the marketing.
The nutrients that actually matter
Folate, and which form
Folate is the most critical nutrient in any prenatal. It supports neural tube closure in the first four weeks of pregnancy, before most women know they are pregnant. This is why you need to have adequate folate levels at conception, not after a positive test.
The form matters significantly. Folic acid is the synthetic version found in most budget prenatals. It must be converted by the body through a multi-step process before it can be used. The problem is that a significant proportion of women carry a gene variant called MTHFR that impairs this conversion, meaning folic acid supplementation may not be reliably effective for them.
Folinic acid (also called calcium folinate) and methylfolate are both active forms that do require far less conversion. They are more directly usable by the body regardless of MTHFR status. A prenatal that uses an active form of folate is a more reliable choice for most women.
Choline
Choline is the nutrient most commonly left out of prenatal vitamins, despite having evidence for neural tube protection and foetal brain development that is comparable to folate. The recommended daily intake during pregnancy is 450mg. Most prenatals contain little or none. When they do include it, the dose is often well below what the evidence supports.
Check your prenatal label. If choline is not listed, or is listed at a dose below 100mg, it is a meaningful gap in the formulation.
B vitamins
B vitamins support foetal brain development, maternal energy metabolism, and can help ease pregnancy nausea, particularly B6. A prenatal should include a full B complex, not just folic acid. Look for B12, B6, B1, B2 and niacin as a minimum.
Zinc and iodine
Zinc supports immune function, cell growth and foetal development. Iodine is essential for foetal thyroid development and brain growth. Both are commonly insufficient in standard diets and should be present in a quality prenatal.
Vitamin D
Vitamin D deficiency is widespread in pregnant women, even in Australia. It supports calcium absorption, immune function and foetal bone development. If your prenatal does not include vitamin D, or includes it at a very low dose, it is worth checking your levels through a blood test and supplementing separately if needed.
What to look for beyond the nutrient list
Iron: whether it is included and at what dose
Iron is one of the most contested ingredients in prenatal formulation. Requirements increase significantly in the second and third trimester, but many women enter pregnancy with iron levels that do not yet require supplementation. High-dose supplemental iron causes nausea, constipation and digestive discomfort that can make an already challenging first trimester significantly worse.
An iron-free prenatal allows you to supplement iron specifically, at a dose informed by your blood test results, rather than taking a fixed dose that may not be right for your individual situation. If your prenatal includes iron, check the dose and check your ferritin before assuming you need it.
Capsule size and tolerability
A prenatal you cannot consistently take is not doing its job. If a capsule is difficult to swallow or triggers nausea, you will stop taking it. Smaller capsules that are gentle on the stomach make consistent daily use more realistic, which is what actually determines whether a prenatal is effective.
Unnecessary additives and fillers
Some prenatals include artificial colours, synthetic preservatives, bulking agents and allergens that serve no nutritional purpose. A formula focused on the essential nutrients without unnecessary additions is more transparent and easier on sensitive systems, particularly in the first trimester.
Australian manufacture
Australian-made supplements are formulated under strict TGA quality control guidelines, with ingredient testing and manufacturing standards that are among the most rigorous in the world. Where country of manufacture is available on the label or website, it is worth checking.
What to ignore
Claims like "complete prenatal nutrition" or "everything you and your baby need" are marketing language, not clinical statements. No prenatal replaces a good diet, and no prenatal can be everything for every woman. The relevant question is not whether a prenatal claims to be complete but whether it contains the specific nutrients your body needs in forms it can use.
How to choose a prenatal
Start with your blood results. A preconception blood panel that includes ferritin, vitamin D, folate and B12 tells you where your individual gaps are. A prenatal that addresses those specific gaps is more useful than one formulated for the average pregnancy.
Then check the label for: active folate (calcium folinate or methylfolate, not folic acid), choline at a meaningful dose, a full B complex, zinc, iodine and vitamin D. Consider whether iron-free makes more sense for your starting point.
If you are unsure, working with a naturopath or GP to review your prenatal choice alongside your blood results is the most individually appropriate approach.
The Prenatal by moode contains calcium folinate, 300mg of choline, magnesium bisglycinate, zinc, iodine and a full B complex. It is iron-free by design. Always read the label and follow directions for use.
moode answers your questions about choosing a prenatal
When should I start taking a prenatal?
At least three months before you begin trying to conceive. Neural tube closure happens in the first four weeks of pregnancy. Adequate folate and choline at conception, not after a positive test, is what the evidence supports.
Can I take a standard multivitamin instead of a prenatal?
A standard multivitamin is not formulated for the specific demands of pregnancy. It is unlikely to contain adequate folate, choline, or the doses of zinc and iodine that pregnancy requires. A prenatal formulated specifically for preconception and pregnancy is the more appropriate choice.
How do I know if I have the MTHFR gene variant?
MTHFR gene testing is available through your GP or directly through genetic testing services. If you have a history of recurrent miscarriage, have struggled to conceive, or have a family history of neural tube defects, it is worth asking your GP about testing.
Should I take a separate iron supplement as well?
Only if your blood test results indicate you need it. Get your ferritin tested and dose iron specifically based on your results, rather than adding iron on top of an already iron-containing prenatal. Self-prescribing iron without knowing your levels can cause unnecessary digestive discomfort and interfere with absorption of other nutrients.
Is it safe to continue taking a prenatal while breastfeeding?
Yes. The nutritional demands of breastfeeding are significant, and continuing a quality prenatal through the postpartum period supports both maternal recovery and the nutritional quality of breast milk. An iron-free formula is particularly practical for the postpartum period, where digestive sensitivity is common.
About the author
Jess Rosenberg is the founder of moode and a trained nutritionist and naturopath. She created The Prenatal after her own experience of pregnancy left her questioning the quality of what was available on the Australian market. Learn more about moode.
