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By Amy Suzanne Upchurch, Founder + CEO of Pink Stork, Certified Health Coach, INHC
What happens to your brain during pregnancy and after birth
Mom Brain is real – but the name suggests what’s really going on. Pregnancy triggers one of the most significant episodes of brain reorganization in a woman’s entire life, comparable in scale only to the brain changes of puberty and adolescence. Gray matter is reorganized in most of the cerebral cortex. Choline, the nutrient that is the direct precursor to the memory neurotransmitter acetylcholine, is depleted at a rate that most prenatal vitamins do not adequately address. The demand for creatine is increasing significantly. And in the postpartum period, sleep deprivation compounds all of this. This is not a personality quirk. It’s a nourishing and neurological story — and one that deserves to be told accurately.
Always consult your healthcare provider before starting any new supplement during pregnancy or breastfeeding.
What really happens to your brain during pregnancy
NIH-funded research published in Nature Neuroscience in 2024, led by neuroscientists at the University of California Santa Barbara and UC Irvine, provided the most detailed map to date of brain changes during pregnancy. Following a woman for 26 MRI sessions from before conception to two years after giving birth, the research found that overall gray matter volume decreased by about 4 percent in about 80 percent of brain regions during pregnancy. As reported by NIHwhite matter microstructural integrity increased during the second and third trimesters, then returned to prepregnancy status postpartum, while gray matter decreases partially recovered but did not fully return to prepregnancy levels.
These changes are not damage. The study’s senior author, neuroscientist Emily Jacobs, described the pattern as a possible “fine-tuning of brain circuits” — the same type of specialization that occurs during adolescence when the brain becomes more focused and efficient. A large longitudinal study published in PubMed following 110 first-time mothers found that cortical reductions during pregnancy attenuated in the early postpartum period at different rates depending on the brain network. The maternal brain undergoes a choreographed transformation, not a random decay.
“Okay, you had your baby. Great. You’re leaving the hospital. We’ll touch base in about 6 weeks. It’s not long when you’re going through a lot.”
— Jessica Nazzaro, DO, FACOG, NCMP, Board Certified OB-GYN and National Board Certified Menopause Physician
The Choline Problem: Nutrient Deficiency at the Worst Possible Time
Choline is the dietary precursor to acetylcholine, the primary neurotransmitter for memory and attention. During pregnancy, choline is transferred across the placenta to support fetal brain development—the fetal brain builds neural circuits that depend on it. This transport depletes maternal choline stores at a rate that dietary intake alone rarely replaces.
A systematic review and meta-analysis was published in PubMed found that higher maternal choline intake during pregnancy and early postnatal periods was associated with favorable effects on multiple domains of child neurocognition, including memory, attention, and visuospatial learning. The researchers noted that most young women do not meet the reference intake for choline—and most prenatal vitamins provide little to none. Mothers dealing with the demands of a brain reorganization and the exhaustion of fetal transport often have a choline deficit that standard supplements do not close.
Pink Stork’s Total Prenatal, with 22 vitamins and minerals, including choline, is designed to meet the full nutritional profile of pregnancy — not just the bare minimum. Contains choline along with methylated folate (5-MTHF), mild iron diglycine chelate, vitamin D3 and vitamin B12 in the form of methylcobalamin. It’s third-party tested in ISO 17025 accredited labs, non-GMO and gluten-free, and includes ScentCert technology to reduce fragrance-induced nausea that can make supplementing difficult in the first trimester.†
“One of the challenges in pregnancy is building that trust … and feeling heard.”
— Dr. Tosin Odunsi, MD, MPH, FACOG, Obstetrics and Gynecology
Creatine demand increases during pregnancy and postpartum
The Lifespan Review of Creatine in Women’s Health, published in 2021 by the NIH, identified pregnancy and the postpartum period as times when creatine supplementation may be especially important. Creatine supports the phosphocreatine-ATP buffer in both muscle and brain tissue—and developing fetal tissue requires stores of phosphocreatine drawn from the mother’s supply. In the postpartum period, sleep deprivation increases cognitive demand without adequate recovery, impairing creatine pumping. Women begin pregnancy with 70 to 80 percent lower creatine stores than men, making the initial deficit even more significant during these high-demand windows.
For postpartum women who are not breastfeeding and have been cleared by their provider, our single-ingredient micronized creatine supports the phosphocreatine-ATP system in both the brain and muscle tissue.† Always consult your doctor before starting creatine during or after pregnancy.
NAD+ and sleep deprivation: The postpartum energy connection
NAD+ is required for cellular energy production in every cell. Sleep deprivation—a universal feature of early postnatal life—depletes NAD+ levels and impairs NAD+-supported mitochondrial repair processes. When sleep is disrupted each night, the cognitive functions most dependent on efficient cellular energy—working memory, attention, sustained focus—are the first to decline.
Research on NR supplementation published in PMC through the NIH found that NR measurably increased NAD+ in adults and was well tolerated. For postpartum women after breastfeeding, NAD+ Supplement with 500 mg of clinically studied NR supports the cellular energy base that sleep-deprived brains depend on.† Always consult your doctor before starting any new supplement postpartum or while breastfeeding — there is not yet enough research to confirm the safety of NAD+ supplements while breastfeeding.
What you can do before the baby arrives
The most practical thing a pregnant woman can do for her postpartum cognitive experience is to build up nutrient stores before labor. Choline, iron and B12 are depleted during pregnancy and continue to decrease during breastfeeding. Starting a full prenatal period early—ideally three to six months before conception—builds up the reserves that the fourth trimester absorbs.
Pink Stork’s Total Prenatal is designed for preconception through breastfeeding, so the transition from pregnancy to labor does not require a change of formula. With over 50,000 verified Amazon reviews across the Pink Stork brand and availability at Target, Walmart, and CVS, it’s one of the top-rated prenatal formulas—and it’s designed to include nutrients that regular prenatals often miss, including choline and methylated forms of folate and B12†.
“I survived hyperemesis gravidarum and came out the other side knowing that what we put in our bodies during pregnancy matters more than most people realize. Pink Stork was built for that moment—and every moment after.”
— Amy Suzanne Upchurch, Founder and CEO of Pink Stork
Frequently Asked Questions
Is mom brain a medical condition?
No. Mom Brain refers to the cognitive changes — memory lapses, slower recall, reduced ability to multitask — commonly reported during pregnancy and postpartum. Research confirms that these changes are neurologically and nutritionally related, not imaginary, but part of a normal adaptive process rather than a diagnosable condition.
How Long Does Mom’s Brain Last?
The schedule varies. Gray matter changes during pregnancy may persist beyond the first year postpartum, according to neuroimaging research. More acute cognitive symptoms—especially those exacerbated by sleep deprivation—usually improve as sleep normalizes, although nutrient replenishment also plays a role.
Is A Prenatal Vitamin Hindering Mom’s Brain?
No prenatal supplement prevents the neuroplastic changes of pregnancy — these are adaptive and biologically driven. What a high-quality prenatal can do is support the nutrient stores that the mother’s brain depends on, especially choline, B12, iron, and folate, which are depleted by fetal development and are usually deficient in prenatal formulas.†
Is choline included in most prenatal vitamins?
Many prenatal vitamins provide little or no choline. Pink Stork Total Prenatal includes choline as a key ingredient. The NIH Recommended Adequate Intake for pregnant women is 450 mg per day — a level that diet alone rarely meets and most prenatal children do not supplement adequately.†.
Is creatine safe during pregnancy?
The 2021 NIH review of creatine in women’s health discussed the importance of creatine during pregnancy, noting that demand increases during fetal development. However, safety data specific to supplements in pregnant women are not yet sufficient to make a definitive recommendation. Always consult your doctor before taking creatine during pregnancy.†
Can I take NAD+ while breastfeeding?
There is not enough research to confirm the safety of NAD+ supplements during breastfeeding. Consult your healthcare provider before use if you are breastfeeding.
What is the difference between baby brain during pregnancy and postpartum brain fog?
During pregnancy, cognitive changes are primarily driven by neuroplastic reorganization of the brain and depletion of nutrients — especially choline and iron. Postpartum brain fog is exacerbated by sleep deprivation, postpartum hormonal changes, and continued nutrient depletion through breastfeeding. Both are real and both have a nutritional dimension, but the mechanisms overlap rather than being identical.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Always consult your healthcare provider before starting any new supplement, especially during pregnancy, breastfeeding, or when managing a medical condition. Keep away from children.
