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High doses of popular supplement in pregnancy may boost kids’ school performance

Nypost · · 554 words · By Rachel Sacks
Cognitive Development Prenatal Health Supplement Commercialization
open_in_new Read the original article: https://nypost.com/2026/05/18/health/high-doses-of-popular-supplement-in-pregnan…

psychologyDetected Techniques

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Loaded Language 80% confidence
Using words with strong emotional connotations to influence an audience.
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Appeal to Fear 70% confidence
Building support by instilling anxiety or panic in the audience.

fact_checkFact-Check Results

12 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

info Single Source 6
check_circle Corroborated 2
help Insufficient Evidence 2
schedule Pending 2
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“vitamin D deficiency can cause skeletal deformities and impair neurodevelopment, particularly cognitive function”
CORROBORATED
Multiple independent sources confirm that vitamin D deficiency leads to skeletal deformities (rickets in children, osteomalacia in adults) and impairs neurodevelopment/cognitive function.
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web search NEUTRAL — Vitamin D participates in a variety of brain functions, including synaptic functions, cognition and behaviors. Vitamin D deficiency affected the synthesis and metabolism of many neurotransmitters, inc…
https://www.dovepress.com/the-synaptic-and-circuit-functions…
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web search NEUTRAL — A lack of vitamin D can lead to bone deformities such as rickets in children, and bone pain caused by a condition called osteomalacia in adults. Government advice is that everyone should consider taki…
https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-…
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web search NEUTRAL — In addition, vitamin D status during pregnancy was shown to be related to cognitive development, and maternal 25(OH)D levels <50 nmol/L were independently associated with low MDI and PDI scores at six…
https://encyclopedia.pub/entry/13059
info
“Research published Monday in JAMA Network Open found positive associations between a high daily dose of vitamin D and visual memory, verbal memory and flexibility by the time the child turned 10”
SINGLE SOURCE
The provided web search results for this claim are irrelevant (Study.com, Merriam-Webster) and do not mention the JAMA Network Open study or the specific findings regarding visual/verbal memory at age 10.
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web search NEUTRAL — Take online courses on Study.com that are fun and engaging. Pass exams to earn real college credit. Research schools and degrees to further your education.
https://study.com/
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web search NEUTRAL — Master any subject with Studley AI. Trusted by more than 2,000,000 top students. Create beautiful and interactive notes, flashcards, quizzes and podcasts from any content. Study smarter, not harder.
https://www.studley.ai/
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web search NEUTRAL — 2 days ago · consider, study, contemplate, weigh mean to think about in order to arrive at a judgment or decision. consider may suggest giving thought to in order to reach a suitable conclusion, opini…
https://www.merriam-webster.com/dictionary/study
info
“More than 600 women who were 24 weeks pregnant took 2,800 international units of vitamin D or a standard 400 IU dose every day of their pregnancies and then for one week postpartum”
SINGLE SOURCE
The provided evidence consists of generic dictionary definitions and educational websites, providing no information about the specific study parameters (600 women, 2,800 IU vs 400 IU).
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web search NEUTRAL — Take online courses on Study.com that are fun and engaging. Pass exams to earn real college credit. Research schools and degrees to further your education.
https://study.com/
travel_explore
web search NEUTRAL — Master any subject with Studley AI. Trusted by more than 2,000,000 top students. Create beautiful and interactive notes, flashcards, quizzes and podcasts from any content. Study smarter, not harder.
https://www.studley.ai/
travel_explore
web search NEUTRAL — 2 days ago · consider, study, contemplate, weigh mean to think about in order to arrive at a judgment or decision. consider may suggest giving thought to in order to reach a suitable conclusion, opini…
https://www.merriam-webster.com/dictionary/study
info
“The higher-dose group showed positive correlation with three of the functions — verbal memory, visual memory and set shift”
SINGLE SOURCE
While some sources discuss high-dose vitamin D generally, none of the provided evidence confirms the specific correlation with verbal memory, visual memory, and set-shifting in the context of the study mentioned.
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web search NEUTRAL — The high dose vitamin D3 concept in autoimmune disease should be transferred to other areas of vitamin D3 therapy – above all cancer, but also diabetes and cardiovascular diseases to name but a few. K…
https://www.frontiersin.org/journals/immunology/articles/10.…
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web search NEUTRAL — The safety profile of vitamin D supplementation is similar for doses of 400, 4000, and 10 000 IU/day. Hypercalciuria was common and occurred more frequently with higher doses.
https://pubmed.ncbi.nlm.nih.gov/31746327/
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web search NEUTRAL — A lack of vitamin D can lead to bone deformities such as rickets in children, and bone pain caused by a condition called osteomalacia in adults. Government advice is that everyone should consider taki…
https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-…
info
“One other study examined the effects of prenatal vitamin D, showing that a 2,000 IU daily dose from week 12 until delivery resulted in better neurodevelopmental outcomes”
SINGLE SOURCE
One search result mentions a study evaluating 2,000 IU daily in Indian women for repletion and newborn immunological profiles, but it does not explicitly confirm 'better neurodevelopmental outcomes' as a general result in the way the claim states. Other sources discuss 1,000 IU (MAVIDOS).
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web search NEUTRAL — The study evaluates whether 2,000 International Units (IU) of vitamin D3 daily can safely achieve repletion in deficient Indian women while simultaneously assessing its impact on the newborn's immunol…
https://medicaldialogues.in/diet-nutrition/news/daily-2000-i…
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web search NEUTRAL — The MAVIDOS study followed nearly 1,000 pregnant women, all receiving 1,000 IU of vitamin D daily between 11 and 14 weeks of pregnancy. According to the results, vitamin D supplementation during pregn…
https://californiainsider.com/california-news/health/vitamin…
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web search NEUTRAL — Vitamin D supplementation in pregnancy increases birth weight, and reduces the risk of maternal pre-eclampsia, miscarriage, and vitamin D deficiency, fetal or neonatal mortality, as well as attention-…
https://pubmed.ncbi.nlm.nih.gov/38816412/
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“the study participants showed strong language skills at 3 to 5 years old”
SINGLE SOURCE
The provided evidence does not mention language skills of children aged 3 to 5 in relation to prenatal vitamin D supplementation.
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web search NEUTRAL — Low vitamin D during pregnancy is linked to risks like preeclampsia, gestational diabetes, and low birth weight. The study suggests current vitamin D recommendations may be too low. Higher vitamin D l…
https://www.grassrootshealth.net/vitamin-d-deficiency-common…
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web search NEUTRAL — The study showed a dose-dependent response, with 800 IU achieving vitamin D sufficiency in 65.4% of participants, highlighting an effective nutritional intervention for vitamin D deficiency.
https://www.nutraingredients.com/Article/2026/05/12/vitamin-…
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web search NEUTRAL — Between the ages of 30 and 40 years, the connections between cells in the brain begin to diminish, causing volume losses.Vitamin K is a fat-soluble vitamin. The body has limited vitamin K storage capa…
https://www.foundmyfitness.com/topics/vitamin-d
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“A lack of the nutrient can also increase the risk of preterm birth, preeclampsia (a serious pregnancy complication characterized by high blood pressure) and gestational diabetes”
CORROBORATED
Three independent sources explicitly link low maternal vitamin D levels to an increased risk of preeclampsia, gestational diabetes (GDM), and preterm birth.
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web search NEUTRAL — Conclusion: Low maternal vitamin D levels in pregnancy may be associated with an increased risk of preeclampsia, GDM, preterm birth and SGA.Diabetes, Gestational / etiology. Female. Humans.
https://pubmed.ncbi.nlm.nih.gov/23311886/
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web search NEUTRAL — Key Highlight: Vitamin D deficiency during pregnancy increases risks of preeclampsia, preterm birth, and cesarean delivery complications. Gestational diabetes, a form of high blood sugar that develops…
https://www.nutritioncrown.com/news/vitamin-d-pregnancy-comp…
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web search NEUTRAL — Vitamin D deficiency is linked to increased risks of preeclampsia, gestational diabetes, and preterm birth. Insufficient vitamin D levels can lead to postpartum depression and impaired fetal growth.
https://www.academia.edu/129580654/Vitamin_D_deficiency_duri…
info
“low levels from a lack of sun exposure can result in weaker bones, more inflammation, worse immune support and food allergies”
SINGLE SOURCE
The search results provided for this claim are completely irrelevant (referring to a band named 'Low', Lowe's home improvement, and a dictionary definition).
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web search NEUTRAL — Low was an American indie rock band from Duluth, Minnesota, formed in 1993 by the husband and wife duo of Alan Sparhawk (guitar and vocals) and Mimi Parker (drums and vocals).
https://en.wikipedia.org/wiki/Low_(band)
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web search NEUTRAL — Refresh your kitchen and bathroom with affordable swaps. Shop tools, appliances, building supplies, carpet, bathroom, lighting and more. Pros can take advantage of Pro offers, credit and business reso…
https://www.lowes.com/
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web search NEUTRAL — 4 days ago · The meaning of LOW is having a small upward extension or elevation. How to use low in a sentence. Synonym Discussion of Low.
https://www.merriam-webster.com/dictionary/low
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“food allergies, a common issue that affects approximately 1 in 13 US children”
INSUFFICIENT EVIDENCE
No evidence was provided for this claim.
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“our bodies make this necessary nutrient when we’re exposed to light, it can also be found in foods like fatty fish, eggs and cheese”
INSUFFICIENT EVIDENCE
No evidence was provided for this claim in the search results, although it is a widely known biological fact.
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“Previous studies have shown that other supplements, like folic acid, a type of B vitamin, taken early in pregnancy may also boost a child’s verbal and behavioral skills by the time they’re 6 years old”
PENDING
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“Prenatal folic acid and multivitamin supplements have also been linked to a lower risk of autism spectrum disorder in children”
PENDING
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.