If you've ever compared prenatal vitamins, you've probably noticed the usual lineup: folic acid, iron, calcium, maybe some DHA. But there's one nutrient that rarely makes the label — and the research suggests it should be front and center.
That nutrient is choline.
Despite being recognized as essential by the Institute of Medicine back in 1998, choline remains one of the most under-consumed and under-supplemented nutrients in prenatal care. The numbers tell a striking story: according to data from the National Health and Nutrition Examination Survey (NHANES), only about 8.5 percent of pregnant women in the United States meet the adequate intake level for choline. That means roughly nine out of ten expecting mothers are falling short of a nutrient that plays a direct role in how their baby's brain develops.
So why isn't choline in every prenatal on the shelf? And what does the science actually say? Let's walk through it.
What Choline Does During Pregnancy
Choline is neither a vitamin nor a mineral. It's a water-soluble nutrient loosely related to the B-vitamin family, and the body can produce small amounts of it, but not nearly enough to meet the increased demands of pregnancy.
During fetal development, choline serves several critical functions.
Cell membrane formation. Choline is a precursor to phosphatidylcholine, one of the primary building blocks of cell membranes. During pregnancy, when cells are dividing and multiplying at an extraordinary rate, the demand for phosphatidylcholine rises sharply. It supports tissue expansion in both the placenta and the developing fetus.
Brain and nervous system development. Choline is required for the synthesis of acetylcholine, a neurotransmitter involved in memory, mood, and muscle control. It also contributes to the structural development of the fetal brain and the formation of neural connections, processes that begin in the earliest weeks of pregnancy, often before a woman knows she's expecting.
Neural tube closure. Most people associate folate with neural tube development, and rightly so. But choline works alongside folate in the methylation cycle, and research has shown that adequate choline intake may further reduce the risk of neural tube defects, even in populations where food is already fortified with folic acid.
Placental function. The placenta is the lifeline between mother and baby, responsible for delivering oxygen and nutrients to the developing fetus. Research from Cornell University has shown that higher maternal choline intake during the third trimester supports healthier placental function, including improved regulation of genes involved in the body's stress response. In that same research, babies born to mothers consuming higher choline levels had lower concentrations of the stress hormone cortisol in cord blood — a finding that may have implications for long-term metabolic and mental health.
Epigenetic programming. Choline serves as a methyl donor, meaning it contributes to the chemical process that turns genes on and off during development. This is called epigenetic regulation, and it can influence health outcomes that extend well beyond infancy. The methylation patterns established during fetal development can affect how a child's genes are expressed for years, potentially even across a lifetime.
What the Research Shows
In a landmark controlled feeding study conducted at Cornell University, researchers assigned pregnant women in their third trimester to one of two groups: one consuming 480 mg of choline per day (roughly the current adequate intake level), and the other consuming 930 mg per day (approximately double).
The results were notable. Children born to mothers in the higher-choline group showed faster information processing speed during their first year of life. When those same children were tested again at age seven, they demonstrated significantly better sustained attention, the ability to stay focused and accurate over the course of a challenging task. Children in the standard-intake group, by contrast, showed a measurable decline in accuracy as the task went on.
The researchers described these findings as evidence that the current recommended intake may not fully meet the needs of the developing fetal brain, and suggested that population-wide benefits could come from adding choline to standard prenatal supplementation.
Other research has pointed in a similar direction. A separate randomized controlled trial found that providing 900 mg of supplemental choline daily from the second trimester through birth improved auditory attention in infants at five months. A follow-up assessment at 40 months found fewer attention problems and fewer withdrawn behaviors in the supplemented group based on parental reports.
It's worth noting that the broader body of human evidence on choline and neurodevelopment is still growing. A 2025 systematic review acknowledged that while some trials have shown benefits on specific measures, many individual outcomes across studies were not statistically significant, and the authors called for larger, longer-term trials. This is consistent with where the science stands on many prenatal nutrients — promising, directionally positive, and still building.
What is well-established is the biological plausibility: we know what choline does at the cellular level, we know demand increases substantially during pregnancy, and we know most women aren't getting enough.
Why Most Prenatals Skip Choline
If choline is this important, why isn't it in every prenatal vitamin?
The answer comes down to formulation challenges. Choline is a bulky nutrient. Delivering a meaningful dose — say, 200 to 550 mg — takes up significant space in a capsule or tablet. Most prenatal multivitamins are already packed with 15 to 25 other ingredients, and adding a clinically relevant amount of choline would either require a much larger pill or additional pills per day. For brands competing on convenience ("just one small capsule!"), that's a tradeoff they're unwilling to make.
Cost is another factor. High-quality choline ingredients are more expensive than many of the commodity vitamins and minerals that fill out a typical prenatal formula. When a product is being optimized for margin rather than efficacy, choline is often one of the first ingredients to get cut, or included at a token dose of 10 to 55 mg, well below any amount supported by research.
A 2016 study from the University of Illinois at Chicago examined the top 25 prenatal multivitamins on the market and found that not a single one contained the recommended 450 mg dose of choline. Most contained zero. That finding was part of what prompted the American Medical Association to take action.
What the AMA and AAP Have Said
In June 2017, the American Medical Association passed a resolution supporting the inclusion of "evidence-based" amounts of choline in all prenatal vitamins. The resolution specifically acknowledged that adequate choline levels are necessary for normal fetal neural development and reducing the incidence of birth defects, and that the vast majority of prenatal supplements on the market were falling far short.
The following year, in 2018, the American Academy of Pediatrics recognized choline as a "brain-building" nutrient and called on pediatricians to help ensure that pregnant women and young children are consuming adequate amounts. The AAP specifically noted choline's role in brain development alongside other critical nutrients like iron and folate.
These aren't fringe positions. These are two of the most influential medical organizations in the country drawing attention to a nutrient that the supplement industry has largely ignored.
How Much Choline Do You Actually Need?
The adequate intake level set by the National Academy of Medicine is 450 mg of choline per day during pregnancy, rising to 550 mg per day during lactation. For non-pregnant women of reproductive age, the recommendation is 425 mg per day.
Some researchers have suggested that optimal intake during pregnancy may be even higher. The Cornell feeding study that demonstrated cognitive benefits used 930 mg per day as the intervention dose, a figure that combined dietary and supplemental sources. Several clinical experts have called for revised recommendations that better reflect the growing evidence base.
For context, here's what choline intake looks like from food alone. A single large egg contains roughly 150 mg of choline, mostly in the yolk. A serving of beef liver provides around 350 mg. Salmon, chicken, and dairy contribute smaller amounts. For women who don't eat eggs regularly or who follow plant-based diets, where choline-rich foods are less concentrated, meeting the 450 mg target through food alone is particularly difficult.
This is where supplementation becomes important. A well-formulated prenatal can bridge the gap between what you're eating and what your body needs, without requiring you to overhaul your diet or eat foods you don't enjoy.
What To Look For In A Prenatal With Choline
Not all choline sources are created equal. When evaluating a prenatal supplement, there are a few things worth considering.
Dose. Look for a product that delivers a clinically meaningful amount of choline — ideally enough to bring your total daily intake (food plus supplement) close to the 450 to 550 mg range, or higher. A prenatal listing 25 or 50 mg of choline is not going to move the needle.
Form. Common supplemental forms of choline include choline bitartrate, choline chloride, phosphatidylcholine, and citicoline (CDP-choline). Each has slightly different properties, but the most important factor is the total amount of choline delivered, not the specific form on the label. Some forms are more concentrated than others, which affects how much space the ingredient takes up in the product.
Transparency. Avoid products that hide choline (or any other ingredient) inside a proprietary blend. You should be able to see the exact dose per serving on the supplement facts panel. If the label doesn't tell you how much choline you're getting, it's probably not enough.
Format. Because choline is bulky, the most effective prenatal products tend to use formats that allow for higher doses, such as powder sachets, drink mixes, or multi-capsule serving sizes, rather than trying to squeeze everything into a single small pill.
How Mothersense Approaches Choline
We designed Prenatal+ as a powder sachet specifically so we wouldn't have to make the compromises that pill-based prenatals are forced into. Our formula delivers a full, research-informed dose of choline alongside 23 other essential nutrients — all with the forms, doses, and transparency listed clearly on the label.
We chose this format because we believe your prenatal should reflect the science, not the limitations of a capsule. Choline is too important to leave out, and too important to include at a token dose just so it can appear on the label.
Every ingredient in Prenatal+ is third-party tested for identity, potency, and purity. No proprietary blends. No hidden doses. Just what the research supports, delivered in a form your body can actually use.
The Bottom Line
Choline isn't a trendy add-on or a nice-to-have. It's an essential nutrient with a well-documented role in fetal brain development, neural tube closure, placental function, and epigenetic programming. Major medical organizations, including the AMA and the AAP, have called for its inclusion in prenatal supplementation. And yet, the overwhelming majority of prenatal vitamins on the market still contain little to none.
If you're pregnant, planning to become pregnant, or currently breastfeeding, choline intake is worth a conversation with your healthcare provider. Ask about your current intake, whether your prenatal includes a meaningful dose, and whether supplementation makes sense for your individual needs.
Your baby's brain is developing right now. The nutrients you provide today are laying the foundation for a lifetime.
This article is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any new supplement regimen.
References
- Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: National Academies Press; 1998. https://doi.org/10.17226/6015
- Wallace TC, Fulgoni VL. Usual Choline Intakes Are Associated with Egg and Protein Food Consumption in the United States. Nutrients. 2017;9(8):839. https://doi.org/10.3390/nu9080839
- Caudill MA, Strupp BJ, Muscalu L, Nevins JEH, Canfield RL. Maternal choline supplementation during the third trimester of pregnancy improves infant information processing speed: a randomized, double-blind, controlled feeding study. FASEB J. 2018;32(4):2172–2180. https://doi.org/10.1096/fj.201700692RR
- Bahnfleth CL, Strupp BJ, Caudill MA, Canfield RL. Prenatal choline supplementation improves child sustained attention: a 7-year follow-up of a randomized controlled feeding trial. FASEB J. 2022;36(1):e22054. https://doi.org/10.1096/fj.202101217R
- Ross RG, Hunter SK, McCarthy L, et al. Perinatal Choline Effects on Neonatal Pathophysiology Related to Later Schizophrenia Risk. Am J Psychiatry. 2013;170(3):290–298. https://doi.org/10.1176/appi.ajp.2012.12070940
- Korsmo HW, Jiang X, Caudill MA. Choline: Exploring the Growing Science on Its Benefits for Moms and Babies. Nutrients. 2019;11(8):1823. https://doi.org/10.3390/nu11081823
- American Medical Association. Resolution 426 (A-17): Importance of Choline During Pregnancy. Proceedings of the 2017 AMA Annual Meeting. (policy document — no DOI)
- Schwarzenberg SJ, Georgieff MK; AAP Committee on Nutrition. Advocacy for Improving Nutrition in the First 1000 Days to Support Childhood Development and Adult Health. Pediatrics. 2018;141(2):e20173716. https://doi.org/10.1542/peds.2017-3716
- Obeid R, Derbyshire E, Schön C. Association between Maternal Choline, Fetal Brain Development, and Child Neurocognition: Systematic Review and Meta-Analysis of Human Studies. Advances in Nutrition. 2022;13(6):2445–2457. https://doi.org/10.1093/advances/nmac082
- Wallace TC, Blusztajn JK, Caudill MA, et al. Choline: The Underconsumed and Underappreciated Essential Nutrient. Nutrition Today. 2018;53(6):240–253. https://doi.org/10.1097/NT.0000000000000302