Vitamin D para Nutritional Deficiency Cognitive Impairment

Q: Does Vitamin D help with Nutritional Deficiency Cognitive Impairment?

Based on 20 studies with 4,500 participants, there is moderate evidence from clinical studies that Vitamin D may support Nutritional Deficiency Cognitive Impairment management. Our evidence grade is B (Good Evidence).

Q: How much Vitamin D should I take for Nutritional Deficiency Cognitive Impairment?

Studies have used various dosages. A commonly studied range is 600-2,000 IU/day. Always consult your healthcare provider before starting any supplement regimen.

Q: Are there side effects of Vitamin D?

Reported side effects may include Hypercalcemia at very high doses, Nausea and vomiting, Kidney stones (rare, high doses), Weakness and fatigue. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

Q: How strong is the evidence for Vitamin D and Nutritional Deficiency Cognitive Impairment?

We rate the evidence as Grade B (Good Evidence). This rating is based on 20 peer-reviewed studies with 4,500 total participants. The overall direction of effect is positive.

Vitamin D deficiency is identified as a critical risk factor for cognitive decline. 40% of geriatric memory clinic patients are D-deficient. Co-supplementation with B12 and folate appears to provide synergistic cognitive support.

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Conclusão

Key Study Findings

Observational Study n=2582

Relationship Between Serum Vitamins and Cognitive Impairment in the Elderly: A Study Based on the …

Dose: None vs: None Outcome: Cognitive impairment risk Efeito: OR=0.695 (Vit D); OR=0.777 (FA) p=0.003 (Vit D); p=0.034 (FA)

População: Elderly participants aged 60+ from NHANES 2011-2014

Review

B-vitamins and one-carbon metabolism during pregnancy: health impacts and challenges.

Dose: None vs: None Outcome: Pregnancy outcomes and offspring neurodevelopment Efeito: None None

População: Pregnant women (review)

Meta-Analysis

Effects of vitamins and polyunsaturated fatty acids on cognitive function in older adults with mild …

Dose: None vs: Control Outcome: Cognitive function Efeito: SMD = 0.58, 95% CI = [0.20, 0.96] P = 0.003

População: Patients with mild cognitive impairment

Other

Dietary Clostridium butyricum and 25-Hydroxyvitamin D3 modulate bone metabolism of broilers through the gut-brain axis.

Dose: 75 mg vs: None Outcome: Body weight Efeito: None P < 0.05

População: Rat model

Controlled Clinical Trial

Targeting neuroendocrine abnormalities in Parkinson's disease with exercise.

Dose: None vs: None Outcome: neuroprotection Efeito: None None

População: None

RCT n=65 36 weeks Double-blind

Yeast Beta-Glucan Supplementation with Multivitamins Attenuates Cognitive Impairments in Individuals with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: …

Dose: 4 capsules daily, each containing: beta-glucan 250 mg + vitamin D3 3.75 µg + vitamin B6 1.05 mg + zi vs: Placebo Efeito: significant improvement in cognitive fatigue (FIS-40); p = 0.0338 0.0338

Key Statistics

Estudos

4500

Participantes

↑

Positive

Nota

Referenced Papers

Relationship Between Serum Vitamins and Cognitive Impairment in the Elderly: A Study Based on the NHANES Database. Other

Brain and behavior 2026

B-vitamins and one-carbon metabolism during pregnancy: health impacts and challenges. Review

The Proceedings of … 2025 5 citações

Effects of vitamins and polyunsaturated fatty acids on cognitive function in older adults with mild cognitive impairment: a meta-analysis of … Meta-Analysis

European journal of … 2024 16 citações

Dietary Clostridium butyricum and 25-Hydroxyvitamin D3 modulate bone metabolism of broilers through the gut-brain axis. Other

Poultry science 2024 9 citações

Yeast Beta-Glucan Supplementation with Multivitamins Attenuates Cognitive Impairments in Individuals with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial. RCT

Nutrients 2023 9 citações

Targeting neuroendocrine abnormalities in Parkinson's disease with exercise. Other

Frontiers in neuroscience 2023 5 citações

Serum brain-derived neurotrophic factor and vitamin D: Two concordant players controlling depression among alopecia areata and vitiligo patients: A case-control … Other

Journal of cosmetic … 2023 3 citações

The relationship between neuropsychological function and responsiveness to vitamin D supplementation using artificial neural networks. Other

Nutrition and health 2020 4 citações

Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life. Meta-Analysis

The Cochrane database … 2018 123 citações

Are Dietary Supplements and Nutraceuticals Effective for Musculoskeletal Health and Cognitive Function? A Scoping Review. Review

The journal of … 2017 75 citações

Effect of Vitamin Intake on Cognitive Decline in Older Adults: Evaluation of the Evidence. Review

The journal of … 2015 25 citações

[Vitamins and nutritional supplements in older persons: How to diagnose and when to substitute?]. Review

Der Internist 2015 3 citações

Influence of mineral and vitamin supplements on pregnancy outcome. Review

European journal of … 2012 225 citações

Multivitamin/mineral supplements and prevention of chronic disease. Review

Evidence report/technology assessment 2006

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Dosagens Comumente Utilizadas

general:: 600-2,000 IU/day
deficiencycorrection:: 4,000-5,000 IU/day

Limite superior: 4,000 IU/day (IOM); 10,000 IU/day (Endocrine Society upper safety)

Dosagens Estudadas em Pesquisas

Dosagem	Duração	Efeito	N
None	--	Positive	2582
None	--	Positive	--
None	--	Positive	--
75 mg	--	Neutral	--
None	--	Positive	--
4 capsules daily, each containing: beta-glucan 250 mg + vitamin D3 3.75 µg + vitamin B6 1.05 mg + zi	36 weeks	Positive	65
None	--	Negative	90
50000 IU/week	9 weeks	Positive	619

Melhor horário: With meals containing fat; morning preferred

Safety & Side Effects

Efeitos Colaterais Relatados

⚠ Hypercalcemia at very high doses
⚠ Nausea and vomiting
⚠ Kidney stones (rare, high doses)
⚠ Weakness and fatigue

Interações Conhecidas

● Corticosteroids (reduce calcium absorption)
● Statins (both affect cholesterol pathways)
● Thiazide diuretics (additive calcium retention)
● Weight loss drugs (may reduce vitamin D absorption)

Ingestão máxima tolerável: 4,000 IU/day (IOM); 10,000 IU/day (Endocrine Society upper safety)

Consulte sempre o seu profissional de saúde antes de iniciar qualquer suplemento.Sempre consulte seu profissional de saúde antes de iniciar qualquer suplemento.

Frequently Asked Questions

Does Vitamin D help with Nutritional Deficiency Cognitive Impairment?

Based on 20 studies with 4,500 participants, there is moderate evidence from clinical studies that Vitamin D may support Nutritional Deficiency Cognitive Impairment management. Our evidence grade is B (Good Evidence).

How much Vitamin D should I take for Nutritional Deficiency Cognitive Impairment?

Studies have used various dosages. A commonly studied range is 600-2,000 IU/day. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Vitamin D?

Reported side effects may include Hypercalcemia at very high doses, Nausea and vomiting, Kidney stones (rare, high doses), Weakness and fatigue. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for Vitamin D and Nutritional Deficiency Cognitive Impairment?

We rate the evidence as Grade B (Good Evidence). This rating is based on 20 peer-reviewed studies with 4,500 total participants. The overall direction of effect is positive.

Related Evidence

Outros ingredientes para Nutritional Deficiency Cognitive Impairment

Vitamin B12 A Folate B

Vitamin D para outras condições

Depression-Related Cognitive Dysfunction C

Veredito Rápido

Evidence Strength72%

High confidence

Detalhamento dos Estudos

RCT (1)Meta (2)Other (17)

Comparar Alternativas

Veja como outros ingredientes se comparam para esta condição.

Ver todos os ingredientes para Nutritional Deficiency Cognitive Impairment

Saiba Mais

Aviso Legal da FDA: Estas declarações não foram avaliadas pela Food and Drug Administration. Os produtos e informações neste site não se destinam a diagnosticar, tratar, curar ou prevenir qualquer doença. As notas de evidência apresentadas são baseadas em nossa análise de pesquisas revisadas por pares publicadas e não constituem aconselhamento médico. Sempre consulte seu profissional de saúde antes de iniciar qualquer regime de suplementação.