Vitamin D and ADHD
July 11, 2026
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Dr John Kruse Episodes Around July 11, 2026
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20:34Now PlayingVitamin D and ADHD
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Vitamin D is most closely associated with stabilizing calcium levels in the body and ensuring healthy bones. But many areas of the brain are rich in Vitamin D receptors. A number of mental health conditions (depression, schizophrenia, autism, ADHD, dementia) are associated with low blood levels of Vitamin D - at least part of which is due to the health conditions leading to behaviors (avoiding sunlight, non-nutritious diets) that contribute to low Vitamin D. For ADHD, however, there's more than the correlation between current low levels of Vitamin D and ADHD symptoms. Low levels of maternal Vitamin D during pregnancy are associated with a greater likelihood of the offspring from those pregnancies developing ADHD. Research with rats also indicates that low maternal Vitamin D levels can lead to hyperactivity and impulsivity. Finally, there are a few small randomized controlled trials that found an improvement in ADHD symptoms in children with low Vitamin D who took Vitamin D supplements.
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References:
The impact of maternal vitamin D levels during pregnancy and risk of autism spectrum disorder and attention deficit hyperactivity disorder diagnosis and symptoms in offspring: a systematic review and dose-response meta-analysis (2026, Bandini)
Vitamin D as a Lifespan Neuroimmune Signal in Psychiatry: From Developmental Risk to Precision Nutrition (2026, Ducki)
The Relationship Between Vitamin D and the Development and Treatment of Attention-Deficit Hyperactivity Disorder: An Overview of Systematic Reviews (2025, Kitaneh)
The association between serum vitamin D concentration and Attention Deficit/Hyperactivity Disorder: a systematic review and meta-analysis of observational and interventional studies (2025, Ismail)
High-dose vitamin D3 supplementation in pregnancy and risk of neurodevelopmental disorders in the children at age 10: A randomized clinical trial (2023, Aagaard)
The effect of vitamin D supplementation on the brain mapping and behavioral performance of children with ADHD: a double-blinded randomized controlled trials (2023, Mirhosseini)
Vitamin D levels in children with attention deficit hyperactivity disorder: Association with seasonal and geographical variation, supplementation, inattention severity, and theta:beta ratio (2021, Miller)
The effect of vitamin D and magnesium supplementation on the mental health status of attention-deficit hyperactive children: a randomized controlled trial (2021 Hemamy)
The Effect of Vitamin D Supplementation on Attention-Deficit/Hyperactivity Disorder: A Systematic Review and Meta-Analysis of Randomized Controlled Trials (2019, Gan)
Meeting Vitamin D Requirements in White Caucasians at UK Latitudes: Providing a Choice (2018, Webb)
Effect of vitamin D supplementation as adjunctive therapy to methylphenidate on ADHD symptoms: A randomized, double blind, placebo-controlled trial (2018, Mohammadpour)
Cognitive performance and response inhibition in developmentally vitamin D (DVD)-deficient rats (2013, Turner)
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drjohnkruse@gmail.com
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