Cognitive Overview
Very brief summary of Cognitive decline
Treatment : Vitamin D intervention slows or stops progression
Prevention : Many observational studies - perhaps Vitamin D prevents
Omega-3 both prevents and treats cognition
Wonder the benefits if both Vitamin D AND Omega-3 were to be used
Dementia page - 50 items
see also Overview Alzheimer's-Cognition and Vitamin D
Overview Parkinson's and Vitamin D
Cardiovascular (8 studies), Genetics (9 studies), Vitamin D Receptor (16 studies), Omega-3 (54 studies), Intervention (20 studies), Meta-analyses (22 studies), Depression (25 studies), Parkinson's (26 studies)
Click here for details
Poor cognition 26 percent more likely if low Vitamin D (29 studies) – meta-analysis July 2017
Every schizophrenia measure was improved when vitamin D levels were normalized – June 2021
Cognitive Impairment and Dementia often associated with low Vitamin D – April 2020
IQ levels around the world are falling (perhaps lower Vitamin D, Iodine, or Omega-3)
Search VitaminDWiki for "WHITE MATTER" 325 items as of March 2023
Types of evidence that Vitamin D helps brain problems - 2014
Summary of this page by CHAT-GPT as of Sept 2023
- Treatment for cognitive decline: Vitamin D intervention can slow or stop its progression.
- Prevention: There are many observational studies suggesting that Vitamin D might prevent cognitive decline.
- Omega-3 is mentioned to both prevent and treat cognition. There's a suggestion about the potential benefits if both Vitamin D and Omega-3 were used together.
- The page references a "Dementia page" with 50 items.
- There are 365 items in the Cognition category.
- The page also provides overviews related to Alzheimer's-Cognition and Vitamin D, as well as Parkinson's and Vitamin D.
- There are studies in various categories related to cognition, including Cardiovascular, Genetics, Vitamin D Receptor, Omega-3, Intervention, Meta-analyses, Depression, and Parkinson's.
Some highlighted findings include:
- Poor cognition is 26% more likely if Vitamin D levels are low, based on 29 studies.
- Every measure of schizophrenia improved when Vitamin D levels were normalized.
- Cognitive Impairment and Dementia are often associated with low Vitamin D.
- IQ levels around the world are falling, potentially due to lower levels of Vitamin D, Iodine, or Omega-3.
- There's a mention of "WHITE MATTER" with 325 items as of March 2023.
- Types of evidence that Vitamin D helps with brain problems are listed from 2014.
The page lists various studies related to cognition and Vitamin D. Some of the highlighted studies include:
- "Alzheimer’s Is Now Optional" - Dr. Bredesen video and transcript from Sept 2023.
- Senior cognition improved in various ways by Vitamin D (50,000 IU weekly for 8 weeks) as of Sept 2023.
- Senior Cognition was not improved by an average of 2,000 IU Vitamin D - RCT from Aug 2023.
- Personalized Lifestyle Intervention reduced cognitive decline (related to Alzheimer's) in Aug 2023.
- Schizophrenia severity was reduced somewhat by daily 2,000 IU of Vitamin D – RCT from Aug 2023.
- Seniors taking vitamin D were 40% less likely to get dementia as of Jan 2023.
- Alzheimer’s was 1.6X more likely if vitamin D levels were below 25 ng – based on a meta-analysis from July 2023.
- Global burden of brain disorders surpassed cardiovascular disease and cancer as of July 2023.
- Cognition improved in various ways after Vitamin D levels increased to 32 ng (50,000 weekly) as of June 2023.
- There's a mention of the "End of Alzheimer's" video and transcript from June 2023.
- Better cognition requires at least 25 ng of Vitamin D, based on 38 studies – meta-analysis from June 2023.
- The role of Vitamin D in Alzheimer's disease is discussed in various studies from 2022 and 2023.
All Cognitive studies
- wiki page:
- Kefir (C15:0, if grass-fed) helped memories in 66% of Alzheimer's - May 2025
- Chronic Kidney Disease increases risk of Parkinson's Disease by 4X (both fought by Vitamin D) - May 2025
- Dementia 5X less likely if have good levels of Vitamin D, Omega-3 and Homocystine - July 2024
- 17 Ways to Cut Your Risk of Stroke, Dementia and Depression (Vitamin D cuts 10 of them) - April 2025
- Vitamin D: The most popular dietary supplement for people with mild cognitive impairment (41%) – April 2025
- Vitamin D role in Alzheimer’s, Parkinson’s, and Huntington’s - March 2025
- Alzheimer's risk factors (most of which are reduced by Vitamin D) - Jan 2025
- Alzheimer’s Is Now Optional - Bredesen Feb 2025
- Less UV associated with more dementia - Jan 2025
- Glutamate is a neurotransmitter which is regulated by Vitamin D
- How vitamin D benefits normal organs and Long-COVID organs – Jan 2025
- Magnesium can reduce neuroinflammation and cognitive decline – Sept 2024
- Nerve cells and Vitamin D – many studies
- Dementia problems: memory, financial, sleep, personality, driving, loss of smell – Sept 2024
- Parkinson's doubled in 26 years (1 in 3 people now how a neurological condition) – 2024
- Prenatal Vitamin B12 improves brains, 13 of 19 studies – May 2024
- Alzheimer’s, Parkinson’s, Huntington’s, dementia etc. might be prevented by vitamin D (abstract only) – Sept 2024
- Risk of Alzheimer’s is decreased by food, supplements, and lifestyle – Aug 2024
- APOE-04 Alzheimer’s progression slowed up by Omega-3 – RCT Aug 2024
- Increasing child IQ and increased Iodine: 81, 83, 98, and 103 - July 2024
- Schizophrenia associated with low Vitamin D and CYP2R1, CYP27B1, and CYP24A1 – June 2024
- Within 3 months of COVID vaccination 2.3 X incidence in cognitive problems – Korea May 2024
- 800 mg of Magnesium early in 3rd trimester significantly increased brain activity in preterm infants – RCT May 2024
- Dementia prevented by Omega-3, Vitamin D, etc. book and video May 2024
- Super-Agers also have better cognition - April 2024
- The brain might also have a microbiome - May 2024
- Consensus: Vitamin D deficiency is related to Alzheimers (9 of 10 studies) - May 2024
- COVID-19 leaves its mark on the brain, dropping in IQs - March 2024
- Vitamin D deficiency increases risk of Dementia by 1.4 X and Alzheimer’s by 1.5 X – Meta-analysis March 2024
- Many mental illness are associated in the same person (genes, environment) – March 2024
- Can predict 10% of Alzheimer’s – unable to count dominos dots (then treat early) – Jan 2024
- Central Nervous System protection by Vitamin D - Dec 2023
- Dementia (vascular) risk increase 60% if take Folate with other B vitamins - Dec 2023
- Vitamin D prevented brain damage by High Fructose corn syrup (in rats) – Feb 2024
- Better cognition associated with higher Omega-3 index – Sept 2023
- Alzheimer’s Is Now Optional - Dr. Bredesen video and transcript Sept 2023
- Senior cognition improved in 4 ways by Vitamin D (50,000 IU weekly for 8 weeks) – Sept 2023
- Senior Cognition not improved by 2,000 IU Vitamin D avg.- RCT Aug 2023
- Personalized Lifestyle Intervention reduced cognitive decline (Alzheimer's)- Aug 2023
- Schizophrenia severity reduced somewhat by daily 2,000 IU of Vitamin D – RCT Aug 2023
- Seniors taking any amount of vitamin D reduced risk of dementia by 40% - Jan 2023
- Alzheimer’s 1.6X more likely if vitamin D is less than 25 ng – meta-analysis July 2023
- Global burden of brain disorders surpasses cardiovascular disease and cancer - July 2023
- Cognition improved in 5 ways after Vitamin D increased to 32 ng (50,000 weekly) – June 2023
- End of Alzheimer's videos, transcripts and many studies
- Better Cognition needs at least 25 ng of Vitamin D (38 studies)– meta-analysis June 2023
- Role of Vitamin D in Alzheimer's disease (paywalled) - May 2023
- .The Role of Vitamin D in Alzheimer's disease – May 2023
- Vitamin D levels in the brain vary with both the region and the brain problem – Dec 2022
- Better visual memory if more vitamin D – April 2023
- Inflammation of small blood vessels in the brain is associated with low vitamin D - April 2023
- Poor bone health is a ‘robust’ dementia risk factor (both associated with Low vitamin D) - March 2023
- Better neurodevelpment at age 2 if high Vitamin D during all phases of pregnancy – March 2023
- Dementia 2.6 X more likely if very low Vitamin D – March 2023
- Alzheimer's 40 percent less likely if leafy veggie diet - March 2023
- The Role of Vitamin D in Reducing Risk of Alzheimer’s and Dementia - transcript Dr. Grant March 2023
- Dementia risks reduced by Vitamin D – March 2023
- Higher conscientiousness, extraversion related to higher vitamin D in seniors – Feb 2023
- Delirium more likely if low vitamin D - many studies
- Ways to improve the gut microbiome to reduce Alzheimer's disease – Feb 2023
- How Vitamin D fights neurodegeneration (Multiple Sclerosis, Alzheimer’s, Dementia, etc) – Jan 2023
- Alzheimer’s Dementia 2.3X more likely in elderly if low vitamin D – Dec 2022
- Smaller brains associated with low vitamin D (again) – Dec 2022
- Male brains age faster if low vitamin D (perhaps male-pattern baldness fights this) - Oct 2022
- Brain and Vitamin D - many studies
- Dementia 1.35 X more-likely if poor diet – Oct 2022
- COVID increased seniors risk of Alzheimer's by 1.7X in the next year- Sept 2022
- Neuro problems (AD, PD, MSA) associated with poor vitamin D genes (CYP27A1, CYP27B1) – Sept 2022
- Doggie dementia 6.5X more likely if not get exercise (probably low vitamin D) - Aug 2022
- Increased risk of many neuro problems after COVID (1.4 X youths, 1.2X seniors) – Aug 2022
- Alzheimer's 9X more likely in women with a poor Vitamin D receptor – Sept 2022
- Dementia 2X more likely after ICU (suspect low Vitamin D) - Aug 2022
- Calcitriol (activated Vitamin D) increases dementia (however, regular D decreases it) – June 2022
- Alzheimer’s delayed 4.7 years by high Omega-3 index (7.6 years if also have APOE-4) June - 2022
- 2.3 X more poor Neurodevelopment in infant if COVID late in pregnancy – June 2022
- Vitamin D also provides COVID Neuroprotection – April 2022
- Vitamin Supplementation and Dementia - Review May 2022
- Cognitive impairment 5 percent less likely for each ng more of Vitamin D (Parkinson’s) – May 2022
- Alzheimer's disease 1.8 X higher risk if poor Vitamin D Receptor (if not take action) - May 2022
- Alzheimer’s patients have less Magnesium – meta-analysis Jan 2022
- Mild cognitive impairment is 3X more likely to become dementia in one year if low vitamin D – March 2022
- Vitamin D can also fight COVID induced brain problems (behind paywall) – April 2022
- Good working memory in seniors is associated with both Vitamin D and Vitamin C – March 2022
- Dementia 10X lower in a group who are outdoors a lot and eat unprocessed foods - March 2022
- Brain scans noticed changes in most elderly after COVID infection – March 2022
- Delirium or cognitive problems after surgery 1.5X more likely if low vitamin D –meta-analysis Aug 2022
- Every Parkinson’s brain had a gene modification that limited how much vitamin D was available (CYP27B1) – Feb 2022
- Alzheimer's 3X higher risk in countries with high meat consumption - 2016
- Vitamin D is a biomarker for autoimmune, neurological and psychiatric diseases - Jan 2022
- White Matter Hyperintensities (brain) 1.8X more likely if 10 ng less vitamin D - meta-analysis Jan 2022
- Dementia 1.7X higher risk if diabetic and low vitamin D - Jan 2022
- Lower IQ among Autistic Black children (5 in 10) than White (3 in 10) - Dec 2021
- Less cognitive decline in older blacks getting 2,000 IU of vitamin D daily for years (VITAL, etc. post analysis) – RCT Dec 2021
- Dementia 4.1 X high risk in those with low Vitamin D, Omega-3, etc.2 decades before (behind paywall) – Nov 2021
- End of Alzheimer's video and transcript - Oct 2021
- Mutated gene, OAS1, which lowers vitamin D in brain, increases Alzheimers and severe COVID-19 – Oct 2021
- Early brain development helped by Iron, Iodine, Vitamin D, Omega-3. Zinc etc. – Oct 2021
- Psychotic problems associated with low vitamin D – review Sept 2021
- Omega-3 paused Alzheimer's decline - RCT Sept 2021
- Dementia reduced 26 percent after pollution was reduced a decade earlier (probably higher Vitamin D) – Aug 2021
- Your Brain on Covid-19 Long-Haul, Dr. Galland video and transcript - Aug 1, 2021
- 2X higher risk of Alzheimer’s if poor Vitamin D Receptor – Meta-analysis June 2021
- Every schizophrenia measure was improved when vitamin D levels were normalized – June 2021
- Vitamin D supplementation resulted in thicker Brain Cortex – RCT June 2021
- Vitamin D influences inflammation and Alzheimer’s genes (in mice) – March 2021
- Vitamin D and Brain behaviour - review of 10 years - Jan 2021
- Vitamin D and schizophrenia: 20 years on – Jan 2021
- Cognitive Impairment and Dementia often associated with low Vitamin D – April 2020
- Mild cognitive decline reversed by a year of just 800 IU Vitamin D daily – RCT Dec 2020
- Inhaling Vitamin D nanoemulsion through nose gets lots more to the brain (mice) – July 2020
- Cardiac Surgery with low vitamin D increased delirium 1.4X, mortality 1.5X – May 2020
- Resveratrol fights Parkinson, Alzheimers, Diabetes, Cardiovascular, ALS, Stroke, etc.– Nov 2018
- The best predictor of Cognitive Failure was low intake of vitamin D – Feb 2020
- Cognitive speed of Multiple Sclerosis patients increased if Vitamin D increased even a little bit – Feb 2020
- Alzheimer’s Disease risk is 1.9 X higher if Vitamin D deficient- meta-analysis Feb 2020
- Seafood (Omega-3) during pregnancy increased childhood IQ by 8 points – review Dec 2019
- Lower vitamin D in blood causes Alzheimer's Disease (Mendelian gene analysis) – Dec 2019
- Less cognitive decline in women consuming more Magnesium (and vitamins) – Nov 2019
- Alzheimer’s Disease risk is 1.3X higher if Vitamin D deficient – meta-analysis Nov 2019
- Thinner Cingulate Cortex if lower vitamin D – Nov 2019
- Omega-3 index of 6 to 7 associated with best cognition in this study – Nov 2019
- Eating fish improves cognition (Omega-3 fish during pregnancy in this case) - Oct 2019
- Diabetes increases risk of poor cognition by 2X, 12 weeks of Vitamin D not help (but 18 weeks did) – RCT Oct 2019
- Vitamin D in the Central Nervous System – Oct 2019
- Mental disorders fought by Omega-3 etc. - meta-meta-analysis Oct 2019
- IQ 4 points lower in male children if fluoridated water while pregnant (perhaps Magnesium) – Aug 2019
- Omega-3 prevents Parkinson’s Disease – Review of RCT July 2019
- Vitamin D levels vary across the brain, what about other body tissues – July 2019
- Cognitive decline not helped by daily vitamin D getting to just 30 ng – RCT July 2019
- Recent brain problems appears to be associated with neurofilament light chains (would aide Vitamin D MS. Alz studies) – June 2019
- Milk increases risk of Parkinson’s and doubles the risk of Huntington’s -July 2019
- Little sun in first trimester, 2.9 X more likely to have learning disabilities – June 2019
- Senior cognition poor if low vitamin D and low Magnesium intake – June 2019
- Vitamin D Deficiency a Brain Disruptor - Spring 2019
- Methadone cognition improved by 50,000 IU of vitamin D every 2 weeks – RCT May 2019
- Cognitive problems 2X more likely if HIV and low vitamin D – June 2019
- Omega-3 helps brains of seniors – May 2019
- Football professionals die more often of neuro and cardio problems than those in baseball – May 2019
- Fewer cognitive problems if more sun or Vitamin D
- Alzheimer’s is associated with all 7 of the genes which restrict vitamin D from getting to tissues – Sept 2018
- Resveratrol and Brain Mitochondria: a Review – March 2018
- Resveratrol for Alzheimer's disease – Sept 2017
- Omega-3 helped Alzheimer’s only if good level of B vitamins – RCT April 2019
- Alzheimer’s (1.2X) and Parkenson’s (1.3X) more likely if poor Vitamin D Receptor – meta-analysis March 2019
- 8 genes associated with both Alzheimer’s and lowish Vitamin D – May 2019
- Cognitive decline 2X more likely if low Vitamin D or high Vitamin B12 – Feb 2019
- Schizophrenia reduced by biweekly 50,000 IU Vitamin D and probiotics – RCT Feb 2019
- Hypothesis – Brain plasticity improved by Vitamin D – Feb 2019
- Delirium 24 percent more likely for each 2.5 ng lower vitamin D (313,000 patients) – Feb 2019
- Cognitive function of adult women improved in 3 months of 50,000 IU weekly Vitamin D – Jan 2019
- Vitamin or Mineral Supplements Don’t Prevent Dementia (only one Vitamin D trial, it used 400 IU) – Feb 2019
- African Americans are more likely than whites to develop Alzheimer’s (Vitamin D)
- Treating herpes reduced incidence of senile dementia by 10 X (HSV1 reduces VDR by 8X) – 2018
- Why dementia gets more severe in the winter – Jan 2019
- More Cognitive Impairment after some types of stroke if low vitamin D - many studies
- Standard Omega-3 not get past blood-brain barrier in seniors at high risk of Alzheimer’s – Patrick hypothesis Oct 2018
- APOE4 gene problems (Alzheimer’s) reduced by both Vitamin D and Omega-3 - Dec 2018
- Omega-3 is important for Brain Health during all phases of life – Aug 2018
- Body may change gene activation if more Vitamin D is needed (Schizophrenia in this case) – Oct 2018
- Vitamin D and neurological diseases such as stroke, Vascular Dementia, PD, MS - July 2018
- Schizophrenia 44 percent more likely if low vitamin D at birth (8 ng) – Dec 2018
- Alzheimer's risk increased 7 percent for every 4 ng decrease in Vitamin D– meta-analysis Nov 2018
- Hypothesis: Low Vitamin D is a cause of Alzheimer’s Disease – 2014
- Amyloid brain plaque both prevented and removed by high vitamin D (in mice) – Aug 2018
- Cognition improved a tiny amount with 400 IU of vitamin D (not a surprise) – RCT Oct 2018
- Autistics and Schizophrenics have 3X lower Vitamin B12 levels in the brain – Jan 2016
- Conception in winter increases rate of Autism, learning disabilities, dyslexia – Oct 2016
- Alzheimer’s associated with low sun and low vitamin D – Sept 2018
- The Role of Vitamin D in Brain Health: A Mini Literature Review – Sept 2018
- Hypothesis: Omega-3 reduces Alzheimer’s directly and via the gut – Sept 2018
- If struggling with mental health you may need Omega-3, Vitamin D. Iron, Probiotics, etc. – US News Sept 2018
- Off Topic: Fewer mental health problems if eat fermented foods (since ancient times) and microbiota – 2014
- Alzheimer’s associated with Vitamin D and Vitamin D receptor – video and pdf – Aug 2018
- Osteoporosis in men increased their risk of Dementia by 1.3 (60,000 Germans) – July 2018
- Schizophrenics are 3.4 X more likely to be agoraphobic if low vitamin D – Aug 2018
- Dementia – clinical trial using 4,000 IU of Vitamin D– 2023
- Adding Iodine to salt added 11 percent to goiter states income (how much might vitamin D add) – July 2018
- Smaller brains (Intracranial Volume) associated with lower vitamin D – July 2018
- Dementia is associated with low vitamin D - many studies
- Improve Cognitive Health and Memory with Vitamin D and Omega-3 – World Patent March 2018
- Patent to maintain executive function (cognition) with Vitamin D – July 2017
- IQ levels around the world are falling (perhaps lower Vitamin D, Iodine, or Omega-3)
- Cerebral small vessel disease 2.5 X more likely if poor Vitamin D Receptor – Sept 2018
- Adding Vitamin D, Omega-3, etc to children’s milk improved memory (yet again) – RCT June 2018
- 9,000 dollar prize for RCT which found cognition improved after taking 4,000 IU of Vitamin D for 18 weeks – May 2018
- Dementia risk increased 2.4 X following TBI, even if had not lost consciousness – May 2018
- 91 percent of psychiatric hospital admissions had less than 20 ng of vitamin D – May 2018
- Omega-3 and Vitamin D each treat many mental health problems - April 2018
- Omega-3: An Intelligent Decision for Brain Nutrition (book chapter) April 2018
- Alzheimer’s increase due to less sun or more meat
- Vitamin D in breast milk increased later spacial learning in adult mice – April 2018
- 5 Traumatic brain injuries resulted in 2.8 X increased risk of dementia – April 2018
- Mentally ill patients using clozapine were 16 X more likely have low vitamin D – 2017
- Postoperative cognitive dysfunction 8 X more likely if low vitamin D – March 2018
- Omega-3, Vitamin D, Folic acid etc. during pregnancy and subsequent mental illness of child – March 2018
- Off Topic: Dementia risk reduced 90 percent if woman had been highly fit 40 years before
- Why Alzheimer’s studies using Omega-3 have mixed results – quality, dose size, Omega-6, genes, etc. March 2018
- Vitamin B12
- Senior Blacks with low vitamin D were 2X more likely to experience cognitive decline 5 years later – March 2018
- Risk of Dementia and Alzheimer's reduced by higher levels of Vitamin D – meta-analysis Feb 2018
- Seniors able to remember new information 2X better if OK vitamin D – Feb 2018
- Slower cognitive decline if higher vitamin D (1500 adults, 5 years) – Feb 2018
- The Startling Link Between Sugar and Alzheimer's
- Benefits of Omega-3 beyond heart health - LEF Feb 2018
- Supplementation while pregnant and psychotic – 20 percent Omega-3, 6 percent Vitamin D – June 2016
- Should you have a dementia advanced directive - Jan 2018
- First-Episode Psychosis associated with low Vitamin D, Vitamin C and Folate – meta-analysis Nov 2017
- ADHD, Autism, Early Psychosis and Omega-3 – review Dec 2017
- Dementia risk reduced 29 percent by just 10 hours of computer brain plasticity training – RCT Dec 2017
- Alzheimer's disease – less risk if smarter, higher vitamin D, better genes or less coffee – Dec 2017
- Vitamin D and Multiple Sclerosis, Alzheimer's, Parkinson's ,Dementia, and ALS - review Nov 2017
- Senior cognition improved somewhat by 4,000 IU of Vitamin D (if initially less than 30 ng) – RCT April 2017
- Nerve growth and survival depends on BDNF (Brain-Derived Neurotrophic Factor), which is associated with Vitamin D
- Heart Attack increased risk of vascular dementia by 1.35 X (both associated with low vitamin D) Oct 2017
- Study concluded cognitive problems are not a result of low vitamin D (many studies disagree) Nov 2017
- Delirium in Hospitalized Older Adults (does not mention low vitamin D relationship) NEJM Oct 2017
- Mild Traumatic Brain Injury prevented with Omega-3, Resveratrol, etc (in rats) – Oct 2017
- Lymphatic system discovered in brain (what about Multiple Sclerosis, Alzheimer’s, Omega-3 and Vitamin D) – Oct 2017
- Omega-3 found to treat Alzheimer’s and Parkinson’s in animals – Sept 2017
- The End of Alzheimer's and Dementia if adjust Vitamin D, B-12, Iron, Omega-3, etc.
- Violent schizophrenia patients treated by 3 months of Omega-3 – RCT Aug 2017
- Psychosis risk reduced for 80 weeks by just 12 weeks of Omega-3 – RCT Aug 2017
- Alzheimer plaque possibly cleared by Vitamin D – Nov 2017
- Poor cognition 26 percent more likely if low Vitamin D (29 studies) – meta-analysis July 2017
- Preeclampsia doubles the risk of mild cognitive impairment – July 2017
- Alzheimer’s (apoE4) may require more than Omega-3 - May 2017
- Alzheimer’s cognitive decline is 3X faster if low vitamin D – May 2017
- Teens able to think better after vitamin D levels raised to just 25 nanograms – RCT April 2017
- Variety of evidence that Vitamin D helps the brain – July 2014
- Infants getting 1 g of Omega-3 for 12 weeks got better brains – RCT March 2017
- Vitamin D and Glutamine reduced Trauma Center deaths by half – Matthews March 2017
- Mental health intervention trials using enough vitamin D for long enough found benefits – Jan 2017
- Visual memory improved a bit by vitamin D if start with less than 30 ng – RCT Jan 2017
- Sustained brain attention appears to vary with vitamin D levels – March 2016
- Dementia risk factor is increased by 1.5 if low vitamin D – meta-analysis Jan 2017
- Stop or slow elderly cognition decline with large dose Vitamin D– not sure – May 2014
- Reversal of cognitive decline with multitherapy (not monotherapy) – Sept 2014
- Genes which reduce blood-level vitamin D increase the risk of Alzheimer’s disease – Dec 2016
- Low vitamin D with metabolic syndrome increased risk of senior cognitive impairment by 3X – July 2016
- More maternal vitamin D increases child cognition (petri dish, serotonin) – Nov 2016
- Blacks with strokes having low Vitamin D were 3 times more likely to have cognitive impairment – Nov 2016
- Schizophrenia has many associations with low vitamin D – review 2016
- Less vitamin D generated from sunlight by schizophrenia patients – 2016
- Omega-3 reduces many psychiatric disorders – 2 reviews 2016
- Pesticides increase risk of Cancers, Alz, ALS, Asthma, ADHD, etc. (all related to low vitamin D) – Oct 2016
- Cognitive Impairment 1.8 times more likely if low Omega-3– Oct 2016
- Vitamin D deficiency 4.7 times more likely in bipolar disorder, schizophrenia, or schizoaffective disorder – Sept 2016
- New cognitive problems 3 times more likely in Chinese elderly having low vitamin D – July 2016
- Omega-3 may treat schizophrenia
- Heavy smoking during pregnancy increased risk of schizophrenia 38 percent decades later (low vitamin D) – Aug 2016
- Benefits of Omega-3 on brain development
- Cognition of Alzheimer’s patients improved by daily 4,000 IU of vitamin D – RCT Jan 2015
- Poor Cognition and Alzheimer’s Disease both associated with low vitamin D – review May 2015
- Omega-3 helps childhood cognition – meta-analysis April 2016
- Poor cognition associated with low vitamin D in elderly (Asians now too) – meta-analysis March 2016
- Football Brain injuries prevented by Omega-3 – RCT Jan 2016
- Cognitive decline worse in winter (when vitamin D levels are lower) – July 2014
- Increased word fluency associated with higher levels of vitamin D (40 ng and higher) – Dec 2015
- Schizophrenia sometimes associated with depression (both associated with low Vitamin D) – Dec 2015
- Memory loss linked to low vitamin D – Nov 2015
- Dementia risk significantly increased if have 4 chronic diseases – all associated with low vitamin D – Sept 2015
- Language understanding by infant is associated with vitamin D level during pregnancy – Dec 2015
- Fewer cognitive problems in regions with more sunshine (vitamin D) – April 2014
- Schizophrenia treated by 6 months of Omega-3 – RCT Nov 2015
- Vascular dementia (after strokes) 32X more likely in Hypertensives with low vitamin D – Oct 2015
- Off Topic: Heat Shock Proteins (sauna etc) prevent clumping in Alzheimer’s – Oct 2015
- The "Surprising Link" Between Vitamin D Deficiency and Dementia (not a surprise) - Oct 2015
- Omega-3 and infant development - dissertation Sept 2015
- Decrease of Alzheimer’s biomarker halted by Resveratrol (perhaps due to vitamin D) – RCT Sept 2015
- Alzheimer’s Disease is associated with genes which restrict vitamin D – Aug 2015
- Poor memory (among diabetics) if have low vitamin D – Aug 2015
- Omega-3 etc improved both cognition and mobility of older women – Aug 2015
- Schizophrenia relapses reduced 3X by Omega-3 – RCT Mar 2015
- Cognitive decline in elderly slowed by Omega-3 – meta-analysis May 2015
- Vitamin K and cognition in the elderly
- Less vitamin D, bigger brain - humans and animals - Jan 2015
- Schizophrenia associated with low vitamin D (97 percent) and smaller right hippocampus – Aug 2015
- Alzheimer’s disease 21 percent more likely if low vitamin D – meta-analysis Aug 2015
- All pregnant women (in UK) should have free vitamin D – Gillie Aug 2015
- Alzheimer disease 5X less likely with nonmelanoma skin cancer (lots of vitamin D) – May 2013
- Schizophrenia with high cRP is 4X less likely if high vitamin D – June 2015
- Cognitively impaired brain atrophy was slowed 40 percent by Omega-3 and B vitamins – RCT July 2015
- Stroke results in 8 years of cognitive decline (vitamin D not mentioned) May 2015
- Schizophrenia and smaller hippocampus both associated with low vitamin D – June 2015
- Omega-3, Vitamin D, and other nutrients decrease mental health problems – March 2015
- 2,000 IU of vitamin D reduced schizophrenia chance by 77 percent (male infants) - 2004
- Delirium 2.7 X more likely after hip fracture and low vitamin D – May 2015
- Better memory if take lots of vitamin D (senior rats) – May 2015
- Hospital induced delirium 2X more likely if low vitamin D – April 2015
- 2X better attention and working memory if high vitamin D among seniors living in communities – April 2015
- Dementia risk increases with latitude (less vitamin D) - Feb 2015
- Vitamin D, Omega-3 supplementation helps cognition – perhaps due to serotonin – Feb 2015
- Brains of seniors had 60 percent more white matter abnormalities if low vitamin D – March 2015
- ALL of the top 10 health problems of women are associated with low vitamin D
- Chance of Dementia increased 3 percent for every 1 ng less of vitamin D – Feb 2015
- Schizophrenia associated with low vitamin D – review Dec 2014
- Schizophrenic episodes associated with low vitamin D – Dec 2014
- Intellectually disabled 2X more likely to have low vitamin D (shut-in) – Sept 2014
- Why vitamin D in Alzheimer's disease - a hypothesis – Jan 2014
- Vitamin D improved brains in aging rats – Sept 2014
- Huntington disease patients – ALL had low vitamin D levels – Sept 2014
- Adults with intellectual disabilities under psychiatric care have low levels of vitamin D – Sept 2014
- Short-term memory 2X better for those who took slightly more vitamin D 14 years before – Sept 2014
- Severe Alzheimer's delayed by 1 year with vitamin D intervention – March 2014
- The Single Vitamin That's a Double Whammy Against Both Depression and Dementia (Mercola) – Aug 2014
- Dementia surprisingly associated with low vitamin D (should not a surprise) – Aug 2014
- More depression associated with more dementia in seniors (vitamin D not mentioned) – July 2014
- Schizophrenia increased 40 percent for Spring births after Danes stopped vitamin D fortification – April 2014
- 33 percent more white matter abnormality in brain (periventricular WMA) if low vitamin D – July 2014
- Parkinson's and Alzheimer's: associations with vitamin D receptor genes and race – meta-analysis July 2014
- Hypothesis: Chemo brain and other cognitive impairements are associated with low vitamin D
- Smart Drugs (Nootropics) and Vitamin D
- Cognition and vitamin D – summary of expert opinions – July 2014
- Schizophrenia might be treated by folic acid, vitamin B12 and vitamin D – May 2014
- Dementia 13X more likely in elderly with low vitamin D – May 2014
- Alzheimer risk reduced by combination of memantine and vitamin D (patented) – Jan 2014
- Cognition and vitamin D in elderly: is 10 ng the correct breakpoint – April 2014
- Vitamin D and neurocognitive function – Holick April 2014
- Schizophrenia veterans with low vitamin D more likely to smoke and have OCD, Parkinson's – April 2014
- Cognition declined somewhat if low vitamin D – March 2014
- Cognitive Impairment 4X more likely if low vitamin D (less than 20 ng) – Feb 2014
- Children with mental disorders have somewhat less vitamin D levels (graph) Jan 2014
- Central Nervous System helped by Vitamin D – Review – 2013
- DDT 3.8 X more prevalent with Alzheimer disease (no mention that DDT decreases vitamin D) – Jan 2014
- Low vitamin D is bad for the rat brain (and probably human brain) – Dec 2013
- Fewer white spots in MRI brain scans if had more vitamin D – Jan 2014
- Hypothesis – Alzheimer’s Disease results of hormone imbalance (vitamin D etc.) – Jan 2014
- Schizophrenia Prevention – Vitamin D is one possibility – Jan 2014
- Age-adjusted dementia may be declining – NEJM Dec 2013
- Comparison of Alzheimer's Disease and Parkinson's Disease – Sept 2013
- Vitamin D and Omega-3 may reduce cortical atrophy with age – Nov 2013
- Low vitamin D associated with cognition in women who were 5 years older – Oct 2013
- Huntington disease patients also have low levels of vitamin D - July 2013
- Diabetics with low vitamin D had more cognitive impairment– Aug 2013
- Vitamin D was one of the few drugs which improved cognition in seniors – Aug 2013
- Alzheimer's disease 30 percent more likely in the 30 years after a low vitamin D test – July 2013
- Vitamin D and MS, ALS, Autism, Alzheimer’s and other nervous system diseases – review Aug 2013
- Brain (Alzheimer’s) worked better with Vitamin D intervention – meta-analysis July 2013
- Alzheimer’s and Vitamins D, B, C, E, as well as Omega-3, metals, etc. – June 2013
- Spinal cord problems more likely if TBI if little Omega-3 in diet – June 2013
- Vitamin D is important for the central nervous system and cognition – May 2013
- Dementia associated with low vitamin D in two thirds of studies – systematic review May 2013
- Alzheimer's disease most likely will need more than monotherapy such as vitamin D – May 2013
- Alzheimer’s and Parkinson’s diseases associated with low vitamin D – meta-analysis June 2013
- Traumatic brain injury treated by Vitamin D Progesterone Omega-3 and glutamine – May 2013
- Fewest Google searches for Mental Health when there is lots of vitamin D from the sun – May 2013
- Infectious burden linked to cognitive decline (both linked to low vitamin D) – March 2013
- Alzheimer’s patients 3X more likely to have a malfunctioning vitamin D receptor gene – 2012
- Schizophrenia high and increasing in Canada – lower vitamin D and more dark skin – Feb 2013
- Off topic: Brain Plasticity (best way to exercise your brain) – Interview Dec 2012
- Long term rat memory aided by optimal level of vitamin D – Dec 2012
- Magnesium may be an important way to treat brain trauma
- Vitamin D reduces Alzheimer’s disease in at least 11 ways – Jan 2013
- Vitamin D aided progesterone in reducing traumatic brain injury – RCT Dec 2012
- Psychiatric disorders in a few elderly associated with insufficient vitamin D – Sept 2012
- 400 IU vitamin D was not enough to stop cognitive impairment - Nov 2012
- Cognitive
- Dementia risk increases 60 percent if have low vitamin D – Nov 2012
- Alzheimer’s patients not on medication have very low levels of Vitamin D2 – Nov 2012
- Age-related cognitive decline in rats mitigated by Vitamin D intervention – RCT Oct 2012
- Dementia less likely with increased levels of Magnesium etc.
- Alzheimer's Disease more likely with low vitamin D – meta-analysis Oct 2012
- Lewy Body Dementia (Robin Williams) and low Vitamin D
- Role of vitamin D in insulin resistance – Sept 2012
- Alzheimer disease associated with 2.5 ng less vitamin D – meta-analysis Sept 2012
- 80 year olds had better cognition and stood better if high level of vitamin D – Sept 2012
- Deliurium in ICU not associated with daily vitamin measurements – Aug 2012
- Cognitive Impairment 2.4X more likely if low vitamin D – meta-analysis July 2012
- A Concussion-Free Football Season: How one High School beat the odds - July 2012
- Overview Schizophrenia and Vitamin D
- Diabetes reduces vitamin D levels which reduces cognition – June 2012
- Alzheimer's probability decreased 77 percent with just 51 IU more vitamin D daily – April 2012
- Alzheimer’s 4X less likely with high level of vitamin D – 2 studies April 2012
- Cognition in young adults not improved with vitamin D if already have enough – Nov 2011
- Alzheimer’s may be treated by vitamin D3 and curcumin – March 2012
- Alzheimer’s patients are genetically 70 percent more likely to be vitamin D in-efficient – Feb 2012
- "Senior moment" 25X more likely with low vitamin D - Feb 2012
- Vitamin D Helps Atlanta High School Athletes - Feb 2012
- Dementia 19X more likely if low vitamin D – Jan 2012
- Concussions (traumatic brain injury) getting big press coverage, vitamin D might be both a cause and a solution
- Link between diabetes and Alzheimers is probably low vitamin D
- Vitamin D and Risk of Cognitive Decline in Elderly Persons – June 2011
- Risk of cognitive decline 50 percent higher if low amount of vitamin D – Aug 2011
- 5X fewer hip fractures from Parkinson – Alzheimer – Stroke with enough sun – June 2011
- Vitamin D might might reduce dementia – Mar 2011
- Hypothesis -10 percent increased schizophrenia in winter births due to vitamin D – Mar 2011
- Mental Illness and Vitamin D
- Poorer teen cognition due to lower vitamin D or race – Dec 2010
- Elderly with more than 257 IU vitamin D daily had less cognitive impairment – Nov 2010
- Schizophrenia and vitamin D have latitude-related genes – Nov 2010
- Cognitive impairment 4X more likely when vitamin D less than 10 ng – Nov 2010
- Rats show relationship of vitamin D deficiency to Schizophrenia – Sept 2010
- Vitamin D less than 10ng associated with cognitive decline – July 2010
- Influence diagram for vitamin D and cognition - 2008
- Low Vitamin D Levels Associated With Increased Risk for Cognitive Impairment - July 2010
- Overview Alzheimer's-Cognition and Vitamin D
- Vitamin D Cognitive performance review did not find assocation – Oct 2009
- Do Vitamin D Deficiency and Cognitive Decline Go Hand-in-Hand? – Jan 2010
Associations of Cognitive to other categories in VitaminDWiki
Summary of Associations
| Associated category | Associations |
|---|---|
Results
20 pages in both categories: Cognitive + Intervention
13 pages in both categories: Cognitive + Infant-Child
14 pages in both categories: Cognitive + Pregnancy
12 pages in both categories: Cognitive + Virus
16 pages in both categories: Cognitive + Vitamin D Receptor
13 pages in both categories: Cognitive + Trauma and surgery
27 pages in both categories: Cognitive + Parkinson
15 pages in both categories: Cognitive + Stroke
9 pages in both categories: Cognitive + Genetics
14 pages in both categories: Cognitive + Seniors
27 pages in both categories: Cognitive + Top news
25 pages in both categories: Cognitive + Depression
7 pages in both categories: Cognitive + Bipolar
7 pages in both categories: Cognitive + Sports and Vitamin D
54 pages in both categories: Cognitive + Vitamin D and Omega-3
11 pages in both categories: Cognitive + Autism
7 pages in both categories: Cognitive + ADHD
6 pages in both categories: Cognitive + Skin - Dark
8 pages in both categories: Cognitive + Cardiovascular
10 pages in both categories: Cognitive + Diabetes
6 pages in both categories: Cognitive + Noontime sun and D
Page |
Hits
|
Categories
|
Major change |
|---|---|---|---|
| Less UV associated with more dementia - Jan 2025 | 16 | Noontime sun and D, UV and Vitamin D, Cognitive | 07 Jan, 2025 |
| Little sun in first trimester, 2.9 X more likely to have learning disabilities – June 2019 | 4570 | Noontime sun and D, Pregnancy, Top news, Cognitive, Season of Birth | 29 Jun, 2019 |
| Fewer cognitive problems if more sun or Vitamin D | 4675 | Noontime sun and D, Cognitive | 15 May, 2019 |
| Fewer cognitive problems in regions with more sunshine (vitamin D) – April 2014 | 2400 | Noontime sun and D, Cognitive | 15 May, 2019 |
| Alzheimer’s associated with low sun and low vitamin D – Sept 2018 | 4987 | Noontime sun and D, Cognitive | 18 Sep, 2018 |
| Less vitamin D generated from sunlight by schizophrenia patients – 2016 | 6450 | Noontime sun and D, Genetics , Cognitive | 14 Oct, 2016 |
8 pages in both categories: Cognitive + Vitamin D and Magnesium
6 pages in both categories: Cognitive + Vitamin B12
Page |
Hits
|
Categories
|
Major change |
|---|---|---|---|
| Prenatal Vitamin B12 improves brains, 13 of 19 studies – May 2024 | 9 | Pregnancy, Cognitive, Vitamin B12 | 01 Sep, 2024 |
| The End of Alzheimer's and Dementia if adjust Vitamin D, B-12, Iron, Omega-3, etc. | 3782 | Parkinson, Cognitive, Vitamin D and Omega-3, Vitamin D and Iron, Vitamin B12 | 19 Aug, 2023 |
| Vitamin B12 | Cognitive, Category , Vitamin B12, Associations, AI | 31 Jul, 2021 | |
| Cognitive decline 2X more likely if low Vitamin D or high Vitamin B12 – Feb 2019 | 2671 | Cognitive, Vitamin B12 | 01 Mar, 2019 |
| Autistics and Schizophrenics have 3X lower Vitamin B12 levels in the brain – Jan 2016 | 7657 | Autism, Cognitive, Vitamin B12 | 01 Oct, 2018 |
| Schizophrenia might be treated by folic acid, vitamin B12 and vitamin D – May 2014 | 12117 | Cognitive, Vitamin B12 | 02 Dec, 2015 |
7 pages in both categories: Cognitive + AI
Page |
Hits
|
Categories
|
Major change |
|---|---|---|---|
| Glutamate is a neurotransmitter which is regulated by Vitamin D | 32 | Cognitive, AI | 15 Dec, 2024 |
| The brain might also have a microbiome - May 2024 | 218 | Cognitive, Microbiome, AI | 18 May, 2024 |
| Overview Alzheimer's-Cognition and Vitamin D | Seniors, Overviews, Parkinson, Cognitive, AI | 26 Mar, 2024 | |
| Can predict 10% of Alzheimer’s – unable to count dominos dots (then treat early) – Jan 2024 | 194 | Cognitive, AI | 23 Jan, 2024 |
| Vitamin D prevented brain damage by High Fructose corn syrup (in rats) – Feb 2024 | 195 | Cognitive, AI | 07 Dec, 2023 |
| Cognitive | Cognitive, Category , Associations, AI | 01 May, 2022 | |
| Vitamin B12 | Cognitive, Category , Vitamin B12, Associations, AI | 31 Jul, 2021 |
15 pages in both categories: Cognitive + Multiple Sclerosis
6 pages in both categories: Cognitive + Resveratrol
Page |
Hits
|
Categories
|
Major change |
|---|---|---|---|
| Resveratrol fights Parkinson, Alzheimers, Diabetes, Cardiovascular, ALS, Stroke, etc.– Nov 2018 | 3018 | Cardiovascular, Diabetes, Parkinson, Cognitive, Stroke, Resveratrol | 14 Mar, 2022 |
| Cognitive decline not helped by daily vitamin D getting to just 30 ng – RCT July 2019 | 3462 | Cognitive, Vitamin D Receptor, Resveratrol | 16 Jul, 2019 |
| Resveratrol and Brain Mitochondria: a Review – March 2018 | 971 | Cognitive, Resveratrol | 28 Apr, 2019 |
| Resveratrol for Alzheimer's disease – Sept 2017 | 5057 | Cognitive, Vitamin D Receptor, Resveratrol | 27 Apr, 2019 |
| Mild Traumatic Brain Injury prevented with Omega-3, Resveratrol, etc (in rats) – Oct 2017 | 4502 | Sports and Vitamin D, Cognitive, Vitamin D and Omega-3, Resveratrol | 10 Oct, 2017 |
| Decrease of Alzheimer’s biomarker halted by Resveratrol (perhaps due to vitamin D) – RCT Sept 2015 | 5316 | Cognitive, Resveratrol | 08 Aug, 2016 |