Inside A Dietitian's Framework For Assessing Prenatals

Walk down the supplement aisle and most prenatal vitamins appear remarkably similar.
Long ingredient lists. Bold nutrient claims. Packaging designed to signal “comprehensive support”.

But clinically, there’s often a significant difference between a formula that looks impressive on a label and one that’s designed around evidence, absorption, and real-world maternal outcomes.

When practitioners assess a prenatal, they’re rarely looking at the ingredient count alone. They’re looking at dosage relevance, nutrient form, bioavailability, tolerability, and whether the formulation reflects the physiological realities of pregnancy itself.

Here’s the framework Accredited Practising Dietitian and Land Lab Scientific Advisory Board member Chelsea McCallum uses when evaluating a prenatal formula:

I'm Chelsea Mccallum, an Accredited Practising Dietitian specialising in gut health and a member of the Land Lab Scientific Advisory Board. I spend a lot of time reviewing vitamin and mineral formulations.

I want to pull back the curtain a little, not to give you a nutrient-by-nutrient breakdown, but to share the framework I actually use when assessing whether a prenatal is worth recommending.

Because here's the thing: a label might list 20+ ingredients and look incredibly impressive, but if the doses are inadequate or included in excess, it may not be the right option for you.

Here's what I look for, and why.

1. Are the doses clinically meaningful - or just enough to tick a box?

This is the first thing I check, and it's where a lot of products quietly fall short.
There's a meaningful difference between a nutrient appearing on a label and a nutrient appearing at a dose that actually does something. Plenty of formulations sit so far below evidence-based targets that their inclusion is more about marketing than clinical relevance.

Choline is the one that surprises people most.

Most women haven't heard much about choline during pregnancy - but the research is increasingly hard to ignore. It plays a critical role in foetal brain development, placental health, neural tube formation, and methylation. The National Health and Medical Research Council recommends at least 440-550mg per day during pregnancy and breastfeeding.

Yet choline intake in Australia is remarkably low. National data suggests only around 3.3% of women aged 19-64 meet the Adequate Intake for choline, with rates even lower during pregnancy and breastfeeding.

The part that frustrates me as a clinician? Some prenatal formulas do include choline - but at doses so low they're nutritionally negligible. We're talking around 50mg in a formula that should be delivering closer to 500mg.

The research here is compelling. A controlled study found that children born to mothers who consumed higher choline during the third trimester showed measurably better sustained attention at age 7, compared to children whose mothers consumed only the standard adequate intake - suggesting our current targets may actually be undershooting what's optimal.

When I assess a prenatal, I want to see choline at a dose that reflects the evidence, not one that's just enough to justify putting it on the label.

2. What form is the nutrient in?

This makes an ENORMOUS difference.
The form a nutrient comes in determines how well your body can actually absorb and use it - what we call bioavailability.
Folate is the most talked-about example. Most prenatals are now getting the dose right, but many are still using folic acid, which requires your body to convert it into its active form before it can be used. Up to 60-70% of people carry a variation in a gene called MTHFR, which can impair that conversion. The more bioavailable option, methylfolate (5-MTHF), bypasses this step entirely - meaning your body gets direct access to the form it actually needs.

The same logic applies across multiple nutrients. B12 as methylcobalamin is better utilised than cyanocobalamin. Minerals in chelated or citrate forms like zinc citrate, are more absorbable than their oxide counterparts. These may seem like minor technical details, but they're the difference between a supplement that genuinely supports pregnancy and one that passes through with limited benefit.

When I look at a formula, I'm checking the forms, not just the names.

3. Is it designed for everyone - or designed for you?

A lot of prenatal vitamins include iron as a standard ingredient across the board. The intention is good - iron deficiency anaemia is common in pregnancy. But iron isn't benign at doses that aren't needed. It can cause constipation, nausea, and GI discomfort, which is the last thing anyone needs in the first trimester.

Iron requirements during pregnancy also vary significantly from person to person, depending entirely on your baseline levels - which you can only determine through a blood test. My strong recommendation: always get your iron checked before starting iron supplementation in pregnancy.
And because first trimester nausea is genuinely debilitating for many women, a thoughtful formulation makes a real difference here too. Ginger and vitamin B6 have been shown across multiple studies to meaningfully reduce the severity of nausea and vomiting in pregnancy. A prenatal that includes both at clinically relevant doses is acknowledging something important: if you can't keep the capsule down, the formula doesn't matter.

The best prenatals aren't trying to be everything to everyone. They're built around the evidence, with genuine consideration for the experience of actually being pregnant.

Why I recommend Mother Dose™

The formulation includes 550mg of choline - the highest dose available in an Australian prenatal. Folate is delivered as methylfolate (5-MTHF), B6 as the active P-5-P form, and B12 as methylcobalamin. Minerals are chelated or in citrate forms for superior absorption. It includes 1.5g of ginger root extract alongside B6 for nausea support, and it's intentionally iron-free.

It's TGA-listed, reviewed by over 75 health professionals, and validated in partnership with the University of Queensland. For my clients and community, that level of rigour matters.

If you're currently pregnant, trying to conceive, or supporting someone who is - I'd encourage you to use this framework. Check the forms, check the doses, get your levels tested, and work with a qualified health professional to personalise your approach where you can.