Folate para Nutritional Deficiency Cognitive Impairment
B Evidencia Al menos un ensayo aleatorizado lo respalda, con resultados mayoritariamente consistentes.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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B
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
10
Estudios
1500
Participantes
↑
Positive
B
Calificación
Referenced Papers
Brain and behavior
2026
The Proceedings of …
2025
5 citas
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
Food science & …
2025
Food and nutrition …
2024
19 citas
European journal of …
2024
16 citas
Journal of Parkinson's …
2024
1 citas
Nutrients
2023
9 citas
Clinical nutrition ESPEN
2023
5 citas
The British journal …
2022
7 citas
The Permanente journal
2022
Nutrition and health
2021
13 citas
The Senior care …
2021
2 citas
Systematic reviews
2020
29 citas
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
The journal of …
2017
75 citas
Nutrients
2016
114 citas
The journal of …
2015
25 citas
Ginekologia polska
2015
7 citas
Ontario health technology …
2013
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
Evidence report/technology assessment
2006
Folic acid with or without vitamin B12 for cognition and dementia.
Systematic Review
The Cochrane database …
2003
263 citas
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
References
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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.