Vinpocetine And Blood Flow To The Brain — What The Evidence Shows
Quick Read Vinpocetine is a supplement derived from the periwinkle plant that has been used clinically in Europe and Asia
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Simon Parrott – Vitacuity Ltd
Choline is an essential nutrient that plays a critical role in building brain cells, creating neurotransmitters that support memory and attention, and controlling which genes switch on and off during fetal development. Pregnant women need 480 mg daily, but the average diet provides only about 300 mg. Over 88% of pregnant women fall short of this target. Despite this widespread gap, most prenatal vitamins contain little or no choline, a blind spot that has persisted for decades.
The evidence supporting choline’s importance is mixed but compelling. Low maternal choline is linked to a 36% higher risk of neural tube defects like spina bifida, even in populations where folic acid is widely available. Animal studies consistently show that choline supplementation improves offspring memory and attention, though human trials have produced mostly inconsistent results so far. Small studies suggest choline may support infant development and even boost vitamin B12 levels during pregnancy.
Choline is water-soluble and safe at normal supplemental doses. Dietary sources include eggs, meat, liver and fish, though vegetarians and vegans face particular challenges meeting requirements through food alone. The practical takeaway: check your prenatal vitamin label, consider adding choline if it’s missing, and aim for 480 mg daily from diet and supplements combined.
Verdict: Choline is an established essential nutrient during pregnancy with a clear widespread deficiency gap, credible biological importance, and promising but incomplete evidence for specific cognitive benefits in children.
What if the supplement you’ve been trusting to cover all your bases during pregnancy is quietly missing one of the most important nutrients for your baby’s developing brain? Not through negligence exactly, more through a blind spot that’s been sitting in plain sight for decades. Most women dutifully take their prenatal vitamins from the moment they see those two lines on the test. They’ve heard about folic acid. They know about iron. They’ve probably read about omega-3. But there’s a strong chance nobody has ever mentioned choline, and yet the evidence suggests that over 88% of pregnant women aren’t getting enough of it [12]. That’s not a niche deficiency. That’s a near-universal gap in one of the most nutritionally scrutinised periods of a woman’s life. So why isn’t choline in most prenatal vitamins? And what does the research actually say about why it matters?
Vitacuity analysed over 1.77 million research papers and selected the most relevant studies on this topic. Here’s what we found, including where the evidence is strong, where it’s promising but incomplete, and where the honest answer is still “we don’t fully know yet.”
Choline was only officially declared an essential nutrient in 1998, relatively recent in the world of nutrition science [8]. That late recognition may partly explain why it’s still absent from so many prenatal formulas. But the biology behind choline is compelling.
Choline is a critical building block for several things your body cannot easily do without. It’s a precursor to phosphatidylcholine and sphingomyelin, both structural components of cell membranes, including the billions of new cells being built in a developing brain [4]. It’s also the raw material for acetylcholine, one of the brain’s most important neurotransmitters, involved in memory, attention and muscle control [4]. And perhaps most critically during pregnancy, choline acts as a methyl donor, it donates chemical tags that switch genes on and off, influencing DNA methylation and playing a central role in fetal development [4, 8].
During pregnancy, choline requirements rise significantly. The adequate intake (AI) recommendation is 480 mg per day for pregnant women and 550 mg per day for lactating women [15]. But here’s the catch: average dietary choline intake, which comes predominantly from eggs, liver, meat and fish, is estimated at around 300 mg per day [15]. That’s a meaningful gap, and it falls on a population where the stakes of deficiency are highest.
The body can synthesise small amounts of choline via the liver’s PEMT pathway, but not nearly enough to compensate, particularly during pregnancy, when choline is actively transferred across the placenta to the developing fetus [11]. That transfer is so demanding that it can actually deplete maternal choline stores, raising the mother’s own susceptibility to fatty liver in the process [11].
Evidence grade: Promising, supported by meta-analysis of human studies, but confidence intervals are wide
Most people know that folic acid helps prevent neural tube defects (NTDs), serious malformations of the central nervous system like spina bifida and anencephaly. What’s less widely known is that folic acid doesn’t prevent all cases, and emerging evidence points to choline as a complementary protective factor [2, 15].
A 2022 systematic review and meta-analysis published in *Advances in Nutrition* pooled data from five case-control studies involving 1,131 mothers of newborns with NTDs and 4,439 control mothers [10]. The finding: low maternal choline intake or low circulating choline concentrations were associated with a 36% higher odds of having a baby with a neural tube defect (pooled OR = 1.36; 95% CI: 1.11–1.67). In some populations, the prediction interval suggested the risk could be as high as 2.36-fold [10].
A 2026 narrative review reinforced this picture, noting that choline deficiency may be an important risk factor for neural tube defects even in populations where folic acid fortification is already in place [2]. The mechanisms are biologically plausible: choline and folate share overlapping roles in one-carbon metabolism, but they are not fully interchangeable [15]. You can’t simply take more folic acid and assume the choline gap is covered.
The honest caveat here is that these are primarily observational and case-control data, they show association, not proven causation. But the biological mechanism is credible, the association is consistent across multiple datasets, and the risk of choline deficiency is near-universal. That combination is worth taking seriously.
Evidence grade: Promising, some positive human trial data, but most individual trials show mostly null results with some exceptions; animal evidence is strong
This is where the science gets genuinely interesting, and where we have to be honest about the messiness of the evidence.
Animal studies have consistently shown that choline supplementation during pregnancy improves cognitive outcomes in offspring, particularly memory and attention [1, 6]. These findings are clear and well-replicated. The question is whether they translate meaningfully to humans, and that’s more complicated.
A 2022 systematic review and meta-analysis in *Advances in Nutrition* examined ten publications with interventional designs and found that higher maternal choline intakes during the second half of pregnancy and early postnatal period, specifically 550 mg up to 1 g per day on top of the diet, were “likely to demonstrate favourable effects on several domains of child neurocognition, such as memory, attention, and visuospatial learning” compared to lower-intake controls [10]. Child intakes of 513–625 mg per day from supplements also appeared safe and potentially beneficial [10].
A 2026 prospective cohort study from China, published in the *European Journal of Nutrition*, followed 256 mother-infant pairs and assessed infant development at 1, 3 and 6 months using the Bayley Scales of Infant Development [3]. Median dietary choline intake in late pregnancy was 343 mg per day, with only 1.56% of women meeting the adequate intake recommendation. Higher choline intake was significantly associated with better intelligence scores, Mental Development Index (MDI) and Psychomotor Development Index (PDI) scores in infants [3]. The authors were careful to note that no causal inferences can be drawn from observational data, but the association was statistically significant across multiple developmental measures.
A 2023 review focused specifically on mental health outcomes in offspring, noting that in more than 90% of pregnant women, choline intake falls below the daily recommended dose, and reviewing the plausible mechanisms by which maternal choline shapes fetal brain maturation [6].
However, and this matters, a comprehensive 2025 systematic review in *Nutrients* that examined four randomised controlled trials and five observational studies came to a more cautious conclusion [1, 7]. Most individual neurodevelopmental outcomes across those trials were null. There were some instances where children whose mothers received choline supplementation scored better on developmental measures, but when the full picture was assessed across all outcomes in each trial, the majority showed no significant difference [1, 7]. The review’s conclusion: “Current evidence is insufficient to support or refute the hypothesis that increasing choline intake in pregnancy improves the neurodevelopmental outcomes of the child” [1, 7].
This is a genuinely conflicted picture, and it’s important to explain why. The trials identified were small, used different doses and timings, assessed children at different ages, and measured a wide variety of developmental outcomes. The absence of consistent positive findings across all outcomes doesn’t mean choline has no effect, it may mean we haven’t yet done the right studies at the right scale. The animal evidence is strong, the biological mechanisms are well-understood, and some human data does support benefit. But we don’t yet have the definitive large-scale human trial that would settle the question.
Evidence grade: Strong for adults; promising for pregnancy and fetal liver function
While the neurodevelopmental evidence is still developing, choline’s role in liver health is better established. A choline-deficient diet consistently causes fatty liver in both human and animal studies, and the effect reverses when choline is restored [11]. This isn’t a subtle finding, it’s one of the most reproducible observations in choline research.
During pregnancy, this becomes more complex. Choline is actively transferred across the placenta and into human milk, creating a maternal-to-fetal gradient that can deplete the mother’s own choline stores [11]. Animal studies show that removing choline from a pregnant rat’s diet causes fatty liver in both the mother and the fetus, with severity in the offspring corresponding to severity in the mother and duration of choline restriction [11].
A 2024 narrative review in a peer-reviewed journal concluded that public health policies are needed to ensure sufficient choline intake during pregnancy and lactation, including adding choline to maternal multivitamin supplements, because most pregnant and lactating women are not achieving the adequate intake level through diet alone [11].
Evidence grade: Documented, descriptive research on supplement composition
Here’s the uncomfortable truth about prenatal vitamins: most of them don’t contain choline in meaningful amounts, if at all. A 2025 systematic review and meta-analysis that pooled 12 prevalence studies found that only 11.24% of pregnant women achieve adequate choline intake, meaning 88.76% fall short [12]. Five major international nutrition guidelines from the US, Canada, Australia, the International Federation of Gynecology and Obstetrics, and the FDA have all now emphasised the importance of adequate choline in pregnancy [12], yet supplementation recommendations have been slow to follow.
A 2015 Canadian study found that while pregnant women generally achieved recommended intakes of folate, B6 and B12 through prenatal supplementation, choline was consistently flagged as requiring reconsideration in supplement composition [14]. A decade on, the situation has barely improved.
The same meta-analysis found that high maternal choline levels were associated with a significantly reduced risk of adverse pregnancy outcomes, with an odds ratio of 0.51 (95% CI: 0.40–0.65), roughly halving the risk compared to low choline levels [12]. This is observational data with the usual caveats, but the effect size is substantial and consistent across six studies.
Evidence grade: Promising, small human RCT (n=26) with some interesting findings
One study that doesn’t get much attention showed something unexpected: choline supplementation during pregnancy may improve vitamin B12 status. A controlled feeding study published in the *Journal of Nutritional Biochemistry* had 26 healthy third-trimester pregnant women consume either 480 or 930 mg of choline per day for 12 weeks [13]. Those receiving approximately twice the standard intake (930 mg) had 24% higher serum concentrations of holotranscobalamin, the bioactive form of vitamin B12, compared to the lower-dose group (P = 0.01) [13].
The study was small and should be replicated in larger trials, but it suggests choline and B12 interact meaningfully during pregnancy, both nutrients are involved in overlapping metabolic pathways, and optimising one may support the other [13]. Genetic variation in choline-metabolising genes also appeared to influence B12 status, suggesting individual requirements may vary considerably [13].
The honest picture is that while choline’s biological importance in pregnancy is not seriously in doubt, the human evidence for specific developmental outcomes is still incomplete in important ways.
The most rigorous 2025 systematic review of randomised controlled trials found that only four such trials have been conducted on choline supplementation in pregnancy and child neurodevelopment, and across all of them, most individual outcomes were null [1, 7]. Some positive signals exist, but they’re not consistent enough to draw firm conclusions. This doesn’t mean choline doesn’t work, it may simply mean the trials were underpowered, tested the wrong doses, assessed children too early or too late, or used the wrong outcome measures. But we cannot currently claim, in the language of strong evidence, that choline supplementation in pregnancy definitively improves a child’s cognitive outcomes.
We also don’t know the optimal dose with precision. Current adequate intake recommendations of 480 mg per day for pregnant women were established partly by extrapolation, not by large-scale clinical trials [8]. The most promising interventional human data used doses of 550 mg to 1 g per day on top of the diet [10], but what the ideal supplemental dose looks like in practice remains unclear.
There’s also the question of genetic variation. Choline requirements depend significantly on common variants in genes involved in choline, folate and one-carbon metabolism, variants that may affect more than a third of the population [8, 9]. Some women may need considerably more choline than others, but we don’t yet have practical screening tools to identify who they are.
Finally, the relationship between choline and B12 during pregnancy deserves further research. The small study suggesting that higher choline intake raises bioactive B12 levels is intriguing, but was conducted in just 26 women over 12 weeks [13]. We can’t draw firm conclusions from that sample size alone.
Here’s what a sensible, well-informed person should take from all of this.
Choline is an essential nutrient, not a trend ingredient. Its role in building cell membranes, supporting brain development, protecting against neural tube defects and maintaining liver function during pregnancy is biologically well-established [4, 8, 9]. What’s still being refined is the precise magnitude of benefit from supplementation in humans, and that’s a meaningful distinction, but it shouldn’t be mistaken for “choline doesn’t matter.”
The case for supplementing during pregnancy is straightforward: over 88% of pregnant women don’t reach the adequate intake level through diet [12], and dietary sources are concentrated in foods (eggs, liver, meat) that not everyone eats in sufficient quantities, particularly vegetarians and vegans [8]. The recommended intake is 480 mg per day in pregnancy [15], and average dietary intake is around 300 mg [15]. That’s a consistent gap that diet advice alone isn’t closing.
Choline is water-soluble, which means excess is excreted rather than accumulated, and at normal supplemental doses, it has a well-established safety profile [4, 8]. This is not a nutrient where the risk of supplementing at sensible doses outweighs the risk of deficiency. It’s the other way around.
Practical steps worth considering:
– Check your prenatal vitamin. Look at the label right now. Does it contain choline, and if so, how much? Many leading prenatal supplements contain little or none. If yours doesn’t include it, that’s a gap worth filling. – Consider a separate choline supplement. A dose that brings your total intake closer to 480 mg per day from all sources is a reasonable target based on current guidelines [15]. Phosphatidylcholine and choline bitartrate are the most common supplemental forms. – Eggs are your dietary ally. One large egg contains around 125–150 mg of choline, meaning even two or three eggs per day makes a meaningful contribution to your intake. This is probably the most accessible dietary source for most people. – Don’t assume folic acid covers it. Folate and choline share metabolic pathways but are not interchangeable [15]. Taking folic acid does not substitute for adequate choline intake. – If you’re vegetarian or vegan, pay particular attention. Choline is predominantly found in animal-derived foods, making plant-based diets a specific risk factor for deficiency [8].
The research on choline in pregnancy tells a consistent story: this nutrient matters, most women aren’t getting enough of it, most prenatal vitamins don’t contain it, and the biological case for its importance is strong even where the clinical trial evidence is still catching up. The sensible response to that picture is not to wait for more trials, it’s to close the gap.
[1] Choline During Pregnancy and Child Neurodevelopment: A Systematic Review of Randomized Controlled Trials and Observational Studies (2025). DOI: 10.3390/nu17050886 | https://pubmed.ncbi.nlm.nih.gov/40077755/ | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11901549/
[2] Explore the Role of Choline in the Pathogenesis of Neural Tube Defects (2026). DOI: 10.1002/bdr2.70019 | https://pubmed.ncbi.nlm.nih.gov/41572543/
[3] Association of dietary choline intake in late pregnancy with the early neurobehavioral development of offspring (2026). DOI: 10.1007/s00394-025-03880-x | https://pubmed.ncbi.nlm.nih.gov/41543550/
[4] The role of choline in neurodevelopment (2026). DOI: 10.1038/s41390-026-05021-4 | https://pubmed.ncbi.nlm.nih.gov/42129367/
[6] Maternal choline supplementation during pregnancy to promote mental health in offspring (2023). https://pubmed.ncbi.nlm.nih.gov/37038050/
[7] Choline During Pregnancy and Child Neurodevelopment: A Systematic Review of Randomized Controlled Trials and Observational Studies (2025). DOI: 10.3390/nu17050886 | https://pubmed.ncbi.nlm.nih.gov/40077755/ | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11901549/
[8] Choline: The Underconsumed and Underappreciated Essential Nutrient (2018). DOI: 10.1097/NT.0000000000000302 | https://pubmed.ncbi.nlm.nih.gov/30853718/ | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6259877/
[9] Choline: The Neurocognitive Essential Nutrient of Interest to Obstetricians and Gynecologists (2020). DOI: 10.1080/19390211.2019.1639875 | https://pubmed.ncbi.nlm.nih.gov/31385730/
[10] Association between Maternal Choline, Fetal Brain Development, and Child Neurocognition: Systematic Review and Meta-Analysis of Human Studies (2022). DOI: 10.1093/advances/nmac082 | https://pubmed.ncbi.nlm.nih.gov/36041182/ | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9776654/
[11] A Narrative Review on Maternal Choline Intake and Liver Function of the Fetus and the Infant; Implications for Research, Policy, and Practice (2024). https://pubmed.ncbi.nlm.nih.gov/38257153/
[12] Choline in pregnant women: a systematic review and meta-analysis (2025). DOI: 10.1093/nutrit/nuae026 | https://pubmed.ncbi.nlm.nih.gov/38607338/
[13] Maternal choline supplementation alters vitamin B-12 status in human and murine pregnancy (2019). DOI: 10.1016/j.jnutbio.2019.07.001 | https://pubmed.ncbi.nlm.nih.gov/31473512/
[14] Pregnant Canadian Women Achieve Recommended Intakes of One-Carbon Nutrients through Prenatal Supplementation but the Supplement Composition, Including Choline, Requires Reconsideration (2015). https://pubmed.ncbi.nlm.nih.gov/26063067/
[15] Folate, Choline, and Vitamin B12 Supplementation for Pre-Conceptional and Pregnant Women (2022). DOI: 10.1024/0040-5930/a001398 | https://pubmed.ncbi.nlm.nih.gov/36415939/
This article is for informational purposes only and does not constitute medical advice. Food supplements should not be used as a substitute for a varied and balanced diet and healthy lifestyle. If you are pregnant, breastfeeding, taking medication or have a medical condition, consult your doctor before taking any supplement. These statements have not been evaluated by the Food and Drug Administration (FDA) or the Medicines and Healthcare products Regulatory Agency (MHRA). This product is not intended to diagnose, treat, cure, or prevent any disease.
Quick Read Vinpocetine is a supplement derived from the periwinkle plant that has been used clinically in Europe and Asia
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