The Pregnancy Nutrient Nobody's Talking About

You've heard about folate. You know about omega-3s. But there's one nutrient that's essential during pregnancy — and almost unknown. That nutrient is choline.

Both of my daughters were born during my nutrition training — which meant pregnancy wasn't just something I was studying, it was something I was living. Choline was the nutrient I couldn't stop reading about, so I made it the subject of my final year dissertation: does maternal choline supplementation during pregnancy influence early cognitive outcomes in children? Here's what I found — and why every pregnant woman should know the answer.

So what actually is choline?

Choline is a water-soluble essential nutrient involved in some of the most fundamental processes in the body — cell membrane structure, DNA methylation, liver function, and the production of acetylcholine, the neurotransmitter involved in brain function, memory, and mood. During pregnancy, it's critical for foetal brain development, placental function, and cell division.

Here's the thing though — your body can't make enough of it on its own. You have to get it from food, and most of us aren't getting nearly enough.

The gap is huge

Research suggests that nearly 90% of pregnant women don't meet recommended choline intake levels. In the UK, it's even more concerning — choline isn't included in our food databases, the NHS makes no mention of it on their prenatal nutrition guidance, and it's absent from most prenatal supplements.

What does the research say?

My dissertation reviewed the best available human RCT evidence on whether maternal choline supplementation influences cognitive outcomes in children in the first 7-8 years of life. Five out of six studies I reviewed reported at least one statistically significant finding — including improvements in information processing speed, visuospatial memory, sustained attention, and sensory gating.

The honest conclusion? The evidence is promising but not yet conclusive. Study sizes are small, methods vary, and more high-quality research is needed. But the biological mechanisms are well established, the deficiency rates are alarming, and the potential upside — for brain development, cognition, and long-term outcomes — is significant enough that this nutrient deserves far more attention than it currently gets.

Where do you find it?

The richest food sources of choline are eggs, beef, chicken, fish, and pork. Plant-based sources - including cruciferous vegetables, legumes, and nuts - contain considerably less, making those on plant-based diets particularly at risk of deficiency. We can supplement, and there are some amazing options out there!

The bottom line

If you're pregnant, planning a pregnancy, or breastfeeding, choline is worth paying attention to. It's not a magic bullet — but it's an important nutrient that is often forgotten about.

If you'd like to understand your nutritional status during pregnancy in more detail, get in touch — this is exactly the kind of thing we can explore together.