Folate para Nutritional Deficiency Cognitive Impairment

Critical for homocysteine metabolism and SAM production essential for neurotransmitter synthesis. MTHFR polymorphism carriers may benefit more from methylated forms (5-MTHF).

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Conclusión

Critical for homocysteine metabolism and SAM production essential for neurotransmitter synthesis. MTHFR polymorphism carriers may benefit more from methylated forms (5-MTHF).

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

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

Cross-Sectional Study n=1966

Folate mediates cognitive impairment of aged people with periodontitis.

Dose: None vs: Placebo Efecto: Mediation proportion: dietary supplement folate 8.4%; serum total folate 9.1%; RBC folate 9.1% None

Review

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

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

Población: Pregnant women (review)

Meta-Analysis

Associations between Diet and Cognitive Function in Stroke Survivors: A Systematic Review and Meta-analysis.

Dose: None vs: Standard care or placebo Outcome: Global cognition in stroke survivors Efecto: SMD=0.62 (energy-protein); SMD=-0.40 (B-vitamins) 0.009 (protein); 0.02 (B-vit)

Población: Adult stroke survivors (20 trials + 14 observational)

Other

Fresh Genetic Insights Into Micronutrients Influences on Restless Legs Syndrome Risk.

Dose: None vs: None Outcome: Causal association of micronutrients with RLS Efecto: Retinol OR 0.46; Mg OR 0.62 None

Población: European ancestry (7248 RLS cases, 19802 controls)

Randomized Controlled Trial Double-blind

Relationships of B12 and Homocysteine with Outcomes in the SURE-PD, SURE-PD3, and STEADY-PDIII Trials.

Dose: Vitamin B12 (measured, not supplemented) vs: Within-trial comparison Outcome: B12/homocysteine association with PD outcomes Efecto: None None

Población: Early Parkinson's disease patients

Key Statistics

Estudios

1500

Participantes

↑

Positive

Calificación

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 citas

Folate mediates cognitive impairment of aged people with periodontitis. Other

Nutritional neuroscience 2025 1 citas

Associations between Diet and Cognitive Function in Stroke Survivors: A Systematic Review and Meta-analysis. Meta-Analysis

Advances in nutrition … 2025 1 citas

Fresh Genetic Insights Into Micronutrients Influences on Restless Legs Syndrome Risk. Other

Food science & … 2025

Excess Folic Acid and Vitamin B12 Deficiency: Clinical Implications? Review

Food and nutrition … 2024 19 citas

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 citas

Relationships of B12 and Homocysteine with Outcomes in the SURE-PD, SURE-PD3, and STEADY-PDIII Trials. RCT

Journal of Parkinson's … 2024 1 citas

The Role of One-Carbon Metabolism in Healthy Brain Aging. Review

Nutrients 2023 9 citas

Dietary folate intake and its association with longitudinal changes in cognition function. Other

Clinical nutrition ESPEN 2023 5 citas

Maternal folic acid supplement use/dietary folate intake from preconception to early pregnancy and neurodevelopment in 2-year-old offspring: the Japan Environment … Other

The British journal … 2022 7 citas

Decreasing the Symptoms of Essential Tremor With Medical Painting Therapy. Case Report

The Permanente journal 2022

Impact of a Nordic diet on psychological function in young students. Other

Nutrition and health 2021 13 citas

Online Promotion of "Brain Health" Supplements. Other

The Senior care … 2021 2 citas

Vitamin B-Can it prevent cognitive decline? A systematic review and meta-analysis. Meta-Analysis

Systematic reviews 2020 29 citas

Homocysteine and Dementia: An International Consensus Statement. Other

Journal of Alzheimer's … 2018 281 citas

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

The Cochrane database … 2018 123 citas

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

The journal of … 2017 75 citas

Causes, Consequences and Public Health Implications of Low B-Vitamin Status in Ageing. Review

Nutrients 2016 114 citas

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

The journal of … 2015 25 citas

[Folate metabolism--epigenetic role of choline and vitamin B12 during pregnancy]. Review

Ginekologia polska 2015 7 citas

Vitamin B12 and cognitive function: an evidence-based analysis. Review

Ontario health technology … 2013

Influence of mineral and vitamin supplements on pregnancy outcome. Review

European journal of … 2012 225 citas

Vitamin B6, B12, and folic acid supplementation and cognitive function: a systematic review of randomized trials. Systematic Review

Archives of internal … 2007 222 citas

Multivitamin/mineral supplements and prevention of chronic disease. Review

Evidence report/technology assessment 2006

Folic acid with or without vitamin B12 for cognition and dementia. Systematic Review

The Cochrane database … 2003 263 citas

Nutrients, age and cognitive function. Review

Current opinion in … 1998 30 citas

Dosage & Usage

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

Dosificaciones de uso común

general:: 400 mcg DFE/day (RDA)
cognitivesupport:: 400-800 mcg/day

Límite superior: 1,000 mcg/day from supplements (may mask B12 deficiency)

Dosificaciones estudiadas en la investigación

Dosificación	Duración	Efecto	N
None	--	Positive	2582
None	--	Positive	1966
None	--	Positive	--
None	--	Mixed	--
None	--	Mixed	--
Vitamin B12 (measured, not supplemented)	--	Positive	--
None	--	Positive	--
>5 mg/day	--	Negative	--

Mejor momento para tomar: With or without food; morning preferred

Safety & Side Effects

Efectos secundarios reportados

⚠ Generally well-tolerated
⚠ May mask B12 deficiency symptoms
⚠ Rare: insomnia or irritability at high doses

Interacciones conocidas

● Methotrexate (antagonist — folate reduces efficacy)
● Anticonvulsants (phenytoin, carbamazepine — mutual interference)
● Sulfasalazine (reduces folate absorption)

Ingesta máxima tolerable: 1,000 mcg/day from supplements (may mask B12 deficiency)

Consulte siempre a su profesional de salud antes de comenzar cualquier suplemento.Siempre consulte a su profesional de salud antes de comenzar cualquier suplemento.

Frequently Asked Questions

Does Folate help with Nutritional Deficiency Cognitive Impairment?

Based on 10 studies with 1,500 participants, there is moderate evidence from clinical studies that Folate may support Nutritional Deficiency Cognitive Impairment management. Our evidence grade is B (Good Evidence).

How much Folate should I take for Nutritional Deficiency Cognitive Impairment?

Studies have used various dosages. A commonly studied range is 400 mcg DFE/day (RDA). Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Folate?

Reported side effects may include Generally well-tolerated, May mask B12 deficiency symptoms, Rare: insomnia or irritability at high doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

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

We rate the evidence as Grade B (Good Evidence). This rating is based on 10 peer-reviewed studies with 1,500 total participants. The overall direction of effect is positive.

Related Evidence

Otros ingredientes para Nutritional Deficiency Cognitive Impairment

Vitamin B12 A Vitamin D B

Veredicto rápido

Critical for homocysteine metabolism and SAM production essential for neurotransmitter synthesis. MTHFR polymorphism carriers may benefit more from methylated forms (5-MTHF).

Evidence Strength72%

High confidence

Desglose de estudios

RCT (1)Meta (4)Other (5)

Comparar alternativas

Vea cómo se comparan otros ingredientes para esta condición.

Ver todos los ingredientes para Nutritional Deficiency Cognitive Impairment

Más información

Aviso legal FDA: Estas declaraciones no han sido evaluadas por la Food and Drug Administration. Los productos y la información en este sitio web no están destinados a diagnosticar, tratar, curar ni prevenir ninguna enfermedad. Las calificaciones de evidencia presentadas se basan en nuestro análisis de investigación publicada revisada por pares y no constituyen consejo médico. Siempre consulte a su profesional de salud antes de comenzar cualquier régimen de suplementos.