Why Choline Matters in Pregnancy (And Why Most Prenatals Under-Dose It)

When we talk about prenatal nutrition, the usual suspects dominate the conversation: folate, iron, iodine.

These nutrients are well-established for their role in supporting fetal development and reducing the risk of deficiency-related complications.

There’s another nutrient quietly sitting in the background, one that’s been part of human biology forever, but only recently stepped into the spotlight.

Choline.
And once you understand what it actually does, it’s hard to ignore.

The nutrient we’ve been underestimating

Choline was only officially recognised as an essential nutrient in 1998, which, in nutrition terms, is relatively recent.¹

That timing matters.

Because most prenatal guidelines (and many of the formulas still on shelves today) were built before we fully understood its role.

Now, the research is catching up. And what it’s showing is this:

Choline isn’t a “nice to have.” It’s foundational.

It underpins processes like:

• Cell membrane formation
• Brain signalling
• Gene expression (via methylation)
• Fat metabolism

In other words, it’s involved in building, wiring, and regulating the systems that support new life.

Choline plays a fundamental role in human metabolism and fetal development.¹ More recent research has highlighted its involvement in key processes such as cell membrane formation, methylation pathways, neurotransmitter production and lipid metabolism.¹,²

Pregnancy is a period of rapid construction and increased nutritional demand, and subsequently, maternal nutrition plays a pivotal role during this time.

New cells. New tissues. New systems. Constantly forming.

And choline sits right at the centre of that.

It’s actively transported across the placenta, prioritised for the fetus, even when maternal intake is low.³

Which tells you something important:

The body knows how critical it is.

But unfortunately, most women aren’t getting enough.

Studies suggest typical intake sits around 250–400 mg per day, well below the recommended 450 mg during pregnancy.⁴

In Australia, up to 75% of pregnant women may not meet current recommendations.⁴,⁵

So we have:

• Increased demand
• Active fetal prioritisation
• Consistently low intake

This points to a broader gap in how prenatal nutrition is currently addressed, and a wider disconnect between emerging research and current practice.

Building a body, cell by cell

Every cell in the body needs a membrane: a structure that controls what comes in, what goes out, and how cells communicate.

Choline is required to make phosphatidylcholine, one of the key building blocks of those membranes.¹,⁴

Now scale that up.

During pregnancy, billions of new cells are being formed, across the fetus, the placenta, and maternal tissues.

Choline is quite literally helping construct the architecture that holds it all together.

The brain piece

Choline also plays a critical role in how the brain develops.

It’s involved in producing acetylcholine, a neurotransmitter responsible for communication between brain cells.⁴,⁶

This is what allows neural circuits to form: the foundations of memory, learning, and attention.

It also supports development of the hippocampus, a region essential for cognition that grows rapidly in late pregnancy and early life.⁴

So when we talk about choline, we’re not just talking about structure.

We’re talking about critical function.

Not all nutrients are interchangeable

Choline often gets grouped into the same conversation as folate, particularly because both are involved in methylation.

But they’re not substitutes.

Choline can donate methyl groups to support DNA synthesis and gene regulation, working alongside folate, not replacing it.⁴,⁶

And importantly:

Folate can’t do what choline does.

It doesn’t build cell membranes.
It doesn’t produce neurotransmitters.
It doesn’t support lipid transport in the same way.

This is a system, not a single lever.

So why has it been overlooked?

A few reasons.

• It was recognised later than other nutrients
• Its deficiencies are less visible (no single, obvious “outcome”)
• Requirements vary based on genetics and diet
• Research has only recently accelerated

In short:

The science moved forward, but the category didn’t move with it.

Can diet alone cover it?

Current dietary guidelines recommend approximately:

• 425 mg/day for adult women
• 450 mg/day during pregnancy
• 550 mg/day during lactation

Choline is found in foods such as eggs, meat, fish and dairy, while plant-based sources, including legumes, nuts and cruciferous vegetables, provide smaller amounts.¹,⁸,⁹

But hitting optimal intake consistently, especially during pregnancy, isn’t always straightforward.

Food aversions. Dietary preferences. Appetite changes.

All very real, very common symptoms of pregnancy.

And when you layer that with increased demand, it becomes clear: Diet doesn’t always guarantee adequacy, with research suggesting many women fall below recommended levels.¹⁰

The formulation gap

As research continues to clarify choline’s role, attention is shifting toward how maternal intake can be more effectively supported through both diet and supplementation.

A balanced diet remains the foundation of prenatal nutrition, yet pregnancy alters nutrient metabolism, increases physiological demand and prioritises fetal development. As a result, dietary intake alone may not always be sufficient to meet recommended levels.

This is where formulation starts to matter.

Even among prenatal supplements, choline content varies significantly, and in many cases, it’s either underdosed or missing entirely.¹,¹¹

Which means even women who are actively supplementing may still fall short.

That’s the gap we aim to address.

A more intentional approach

Our Mother Dose™ formulation includes 550 mg of choline as choline bitartrate, aligning with levels supported by emerging research. The formulation is designed to provide nutrients in forms and amounts intended to support bioavailability and consistent intake during pregnancy.

Approaching supplementation as an intentional, evidence-informed practice, tailored to individual needs, is an important consideration in supporting maternal health throughout pregnancy.

For us, it’s about a shift in thinking:
From checking boxes → to supporting biology.
From minimum thresholds → to meaningful doses.
From legacy formulas → to evidence-informed design.