Vitamin D ： Depression-Related Cognitive Dysfunction

Q: Does Vitamin D help with Depression-Related Cognitive Dysfunction?

Based on 12 studies with 2,000 participants, there is limited but promising evidence that Vitamin D may support Depression-Related Cognitive Dysfunction management. Our evidence grade is C (Some Evidence).

Q: How much Vitamin D should I take for Depression-Related Cognitive Dysfunction?

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 Depression-Related Cognitive Dysfunction?

We rate the evidence as Grade C (Some Evidence). This rating is based on 12 peer-reviewed studies with 2,000 total participants. The overall direction of effect is positive.

Research suggests vitamin D supplementation may help improve depressive symptoms including brain fog and mood-related cognitive symptoms, particularly in deficient individuals.

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結論

Research suggests vitamin D supplementation may help improve depressive symptoms including brain fog and mood-related cognitive symptoms, particularly in deficient individuals.

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 効果: OR=0.695 (Vit D); OR=0.777 (FA) p=0.003 (Vit D); p=0.034 (FA)

対象集団: 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 効果: None None

対象集団: 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 効果: SMD = 0.58, 95% CI = [0.20, 0.96] P = 0.003

対象集団: 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 効果: None P < 0.05

対象集団: Rat model

Controlled Clinical Trial

Targeting neuroendocrine abnormalities in Parkinson's disease with exercise.

Dose: None vs: None Outcome: neuroprotection 効果: None None

対象集団: 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 効果: significant improvement in cognitive fatigue (FIS-40); p = 0.0338 0.0338

Key Statistics

研究数

2000

参加者数

↑

Positive

グレード

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 件の引用

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 件の引用

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

Poultry science 2024 9 件の引用

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 件の引用

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

Frontiers in neuroscience 2023 5 件の引用

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 件の引用

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

Nutrition and health 2020 4 件の引用

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

The Cochrane database … 2018 123 件の引用

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

The journal of … 2017 75 件の引用

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

The journal of … 2015 25 件の引用

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

Der Internist 2015 3 件の引用

Influence of mineral and vitamin supplements on pregnancy outcome. Review

European journal of … 2012 225 件の引用

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

一般的な使用量

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

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

研究で検討された用量

用量	期間	効果	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

推奨摂取タイミング： With meals containing fat; morning preferred

Safety & Side Effects

報告されている副作用

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

既知の相互作用

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

耐容上限摂取量： 4,000 IU/day (IOM); 10,000 IU/day (Endocrine Society upper safety)

サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。

Frequently Asked Questions

Does Vitamin D help with Depression-Related Cognitive Dysfunction?

Based on 12 studies with 2,000 participants, there is limited but promising evidence that Vitamin D may support Depression-Related Cognitive Dysfunction management. Our evidence grade is C (Some Evidence).

How much Vitamin D should I take for Depression-Related Cognitive Dysfunction?

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 Depression-Related Cognitive Dysfunction?

We rate the evidence as Grade C (Some Evidence). This rating is based on 12 peer-reviewed studies with 2,000 total participants. The overall direction of effect is positive.

Related Evidence

に関する他の成分： Depression-Related Cognitive Dysfunction

Omega-3 Fatty Acids (DHA/EPA) B N-Acetyl Cysteine C

Vitamin D 他の症状・状態について

Nutritional Deficiency Cognitive Impairment B

総合評価

Research suggests vitamin D supplementation may help improve depressive symptoms including brain fog and mood-related cognitive symptoms, particularly in deficient individuals.

Evidence Strength52%

Moderate confidence

研究の内訳

RCT (1)Meta (2)Other (9)

代替成分との比較

この症状に対する他の成分との比較をご覧ください。

に関するすべての成分を見る： Depression-Related Cognitive Dysfunction

詳しく見る

FDAに関する免責事項: これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。