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Folate لـ Nutritional Deficiency Cognitive Impairment

B

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

الخلاصة

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 مقابل: None Outcome: Cognitive impairment risk التأثير: OR=0.695 (Vit D); OR=0.777 (FA) p=0.003 (Vit D); p=0.034 (FA)

المجتمع المدروس: Elderly participants aged 60+ from NHANES 2011-2014

Cross-Sectional Study n=1966
Folate mediates cognitive impairment of aged people with periodontitis.
Dose: None مقابل: Placebo التأثير: 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 مقابل: None Outcome: Pregnancy outcomes and offspring neurodevelopment التأثير: None None

المجتمع المدروس: Pregnant women (review)

Meta-Analysis
Associations between Diet and Cognitive Function in Stroke Survivors: A Systematic Review and Meta-analysis.
Dose: None مقابل: Standard care or placebo Outcome: Global cognition in stroke survivors التأثير: SMD=0.62 (energy-protein); SMD=-0.40 (B-vitamins) 0.009 (protein); 0.02 (B-vit)

المجتمع المدروس: Adult stroke survivors (20 trials + 14 observational)

Other
Fresh Genetic Insights Into Micronutrients Influences on Restless Legs Syndrome Risk.
Dose: None مقابل: None Outcome: Causal association of micronutrients with RLS التأثير: Retinol OR 0.46; Mg OR 0.62 None

المجتمع المدروس: 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) مقابل: Within-trial comparison Outcome: B12/homocysteine association with PD outcomes التأثير: None None

المجتمع المدروس: Early Parkinson's disease patients

Key Statistics

10

الدراسات

1500

المشاركون

Positive

B

التقييم

Referenced Papers

Nutritional neuroscience 2025 1 اقتباسات
Food and nutrition … 2024 19 اقتباسات
Nutrients 2023 9 اقتباسات
Nutrition and health 2021 13 اقتباسات
The Senior care … 2021 2 اقتباسات
Systematic reviews 2020 29 اقتباسات
Journal of Alzheimer's … 2018 281 اقتباسات
European journal of … 2012 225 اقتباسات
Evidence report/technology assessment 2006
The Cochrane database … 2003 263 اقتباسات
Current opinion in … 1998 30 اقتباسات

Dosage & Usage

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

الجرعات الشائعة

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

الحد الأعلى: 1,000 mcg/day from supplements (may mask B12 deficiency)

الجرعات المدروسة في الأبحاث

الجرعة المدة التأثير ن
None -- Positive 2582
None -- Positive 1966
None -- Positive --
None -- Mixed --
None -- Mixed --
Vitamin B12 (measured, not supplemented) -- Positive --
None -- Positive --
>5 mg/day -- Negative --

أفضل وقت للتناول: With or without food; morning preferred

Safety & Side Effects

الآثار الجانبية المُبلّغ عنها

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

التفاعلات المعروفة

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

الحد الأقصى المسموح به: 1,000 mcg/day from supplements (may mask B12 deficiency)

استشر مقدم الرعاية الصحية دائماً قبل البدء بأي مكمل غذائي.

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

مكونات أخرى لـ Nutritional Deficiency Cognitive Impairment

إخلاء مسؤولية FDA: لم تُقيَّم هذه البيانات من قبل إدارة الغذاء والدواء (FDA). لا تهدف المنتجات والمعلومات الواردة في هذا الموقع إلى تشخيص أو علاج أو شفاء أو الوقاية من أي مرض. تستند تقييمات الأدلة المعروضة إلى تحليلنا للأبحاث المحكّمة المنشورة ولا تُشكّل نصيحة طبية. استشر مقدم الرعاية الصحية دائماً قبل البدء بأي نظام مكملات.