Infant Cognitive Development: Does the Answer Lie in Choline?

Choline is a nutrient that has been increasingly recognised for its profound impact on fetal brain development and cognitive function. Research has shown that adequate choline levels during pregnancy may play a protective role in the development of the fetal brain and may have a lasting influence on a baby's cognitive outcomes.

Choline is important during fetal development, influencing stem cell proliferation and apoptosis, and in doing so may alter brain and spinal cord structure. Studies in animals and humans have demonstrated that supplementing the maternal diet with additional choline may improve pregnancy outcomes and offspring neurodevelopment.¹

Choline is thought to play a similar role to folate in brain development, including acting as a methyl donor in DNA methylation, a process that helps regulate which genes are switched on or off during the critical early stages of fetal growth.

The role of choline in fetal brain development

Choline is essential for the development of the fetal brain, influencing brain structure and function from the earliest stages of pregnancy. It engages receptors that are abundant in the placenta and fetal brain, playing a role in enabling brain cells to build cell walls and contributing to the brain's emerging capacity for inhibitory signalling.

Higher maternal choline levels during pregnancy have been associated with a protective role in infant brain development, with potential implications for long-term cognitive function and behaviour.² A 2022 review published in Advances in Nutrition found that maternal choline intake was associated with improvements in aspects of infant cognitive development, including information processing speed and sustained attention, with some benefits persisting into early childhood.²

Choline also plays a role in supporting the development of the hippocampus, the area of the brain most associated with memory formation and learning. This is one of the reasons why adequate choline intake is increasingly discussed not just as a pregnancy nutrient but as a foundation for long-term cognitive outcomes in children.

Choline and neural tube development

Alongside folate, choline has been identified as a nutrient that may support normal neural tube development. Both are methyl donors, meaning they contribute to the methylation processes that regulate gene expression during the critical early weeks of fetal development, when the neural tube is forming.

Research suggests that women with lower choline intake may have a higher risk of neural tube defect-affected pregnancies, independent of folate status, which is one reason why choline is increasingly discussed alongside folate as a preconception and early pregnancy nutrient rather than just a later-pregnancy consideration.¹

Choline and cognitive development

In addition to its impact on brain structure, choline has been linked to cognitive development. Studies have found that modifying choline intake levels in pregnant animals resulted in enhanced cognitive function in offspring, particularly in regions important for learning and memory such as the hippocampus.

Maternal choline supplementation has been shown in animal models to stimulate hippocampal cell division and enhance cognitive function in offspring, highlighting its potential role in supporting healthy brain differentiation and development. Human research is more limited but is growing, with a 2018 randomised controlled trial by Caudill et al. finding that higher maternal choline intake during the third trimester was associated with faster information processing speed in infants at 4, 7 and 10 months of age.³

Ensuring sufficient choline intake in pregnancy

Given the role of choline in fetal brain development and cognitive function, ensuring adequate intake during pregnancy is important. The recommended amount of choline during pregnancy is around 450mg per day, yet research suggests that only a small proportion of pregnant women meet this requirement through diet alone.⁴

Choline is found in eggs, liver, fish, meat and some plant foods including soy, beans and cruciferous vegetables. However, nausea, food aversions and dietary restrictions during pregnancy can make it harder to reach optimal levels consistently. Most standard prenatal multivitamins provide little or no choline, leaving a gap that a dedicated supplement may help address.

Zita West Choline

400mg of choline bitartrate per serving, formulated to complement the Vital Essence range from trimester 1 through to trimester 3 and the postnatal period with Revital Essence. Designed to sit within a broader pregnancy nutrition plan.

Shop Zita West Choline

How choline and folate work together in pregnancy

Choline and folate are both methyl donors that contribute to the same methylation pathways, and both are important for fetal neural development. They are not interchangeable but they are complementary, and ensuring adequate intake of both is increasingly recommended during pregnancy.

Many women focus on folate during pregnancy but are unaware that their choline intake may be insufficient. Reviewing both as part of a broader pregnancy nutrition plan is worthwhile, particularly in the first trimester when neural tube formation and early brain development are taking place. Read our guide to folate and folic acid here.

Further reading on choline in pregnancy

• Choline in pregnancy — a comprehensive guide to choline needs, food sources and supplementation throughout pregnancy
• Choline and fertility — how choline supports preconception health and early conception
• Choline and inositol — how these two nutrients support reproductive health through distinct mechanisms
• NAC and choline for mitochondrial support — the cellular health angle

FAQs: choline and fetal brain development

Why is choline important for fetal brain development?

Choline is a key building block for cell membranes in the developing brain, a methyl donor for DNA methylation, and supports the development of the hippocampus, which is important for memory and learning. Research suggests adequate maternal choline intake may be associated with improved cognitive outcomes in infants.

How much choline do I need in pregnancy?

The recommended intake during pregnancy is around 450mg per day. Most women do not meet this through diet alone, and most prenatal multivitamins provide insufficient choline. Zita West Choline provides 400mg per serving to complement dietary intake.

Is choline as important as folate in pregnancy?

Both are important and they work together rather than as alternatives. Folate is essential for neural tube development and is the more widely known preconception nutrient, but choline contributes to the same methylation pathways and may play an independent role in fetal brain development. Ensuring adequate intake of both is increasingly recommended.

When should I start taking choline in pregnancy?

Ideally from the preconception period or the start of pregnancy, as choline supports early cell division, neural tube formation and placental development from the earliest weeks. If you are already pregnant, starting choline supplementation at any stage is still worthwhile given its ongoing role throughout pregnancy and into the postnatal period.

References

1. Zeisel SH, da Costa KA. (2009). Choline: an essential nutrient for public health. Nutr Rev. 67(11):615-623. PubMed
2. Wiedeman AM et al. (2022). Maternal choline, fetal brain development, and child neurocognition. Adv Nutr. 13(6):2341-2364. PubMed
3. Caudill MA et al. (2018). Maternal choline supplementation during the third trimester of pregnancy improves infant information processing speed: a randomized, double-blind, controlled feeding study. FASEB J. 32(4):2172-2180. PubMed
4. Gomes da Silva M et al. (2025). Choline in pregnant women: a systematic review. Nutr Rev. 83(2):e273-e288. PubMed

External references: NHS: Vitamins, supplements and nutrition in pregnancy  |  EFSA: Dietary Reference Values for choline

This content is for educational purposes only and is not intended to diagnose, treat, or replace medical advice. Always consult your midwife, GP or healthcare provider before starting or changing any supplement during pregnancy.