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Vitamin E für Age-Related Cognitive Decline

C

High-dose vitamin E may slow functional decline in moderate Alzheimer's disease (TEAM-AD trial). Results are mixed for cognitive decline prevention in healthy populations.

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C

Fazit

High-dose vitamin E may slow functional decline in moderate Alzheimer's disease (TEAM-AD trial). Results are mixed for cognitive decline prevention in healthy populations.

Key Study Findings

Systematic Review n=80488
Vitamin E and cognitive function: A systematic review of clinical evidence.
Dose: None vs.: None Outcome: cognitive function / cognitive impairment Wirkung: None None

Population: participants from 43 clinical studies (2012-2022)

Review
Exploring the Efficacy and Safety of Nutritional Supplements in Alzheimer's Disease.
Dose: Curcumin 800mg/d, omega-3 2g/d, resveratrol 600mg/d vs.: None Outcome: Cognitive decline in AD Wirkung: None None

Population: Alzheimer's disease patients

Observational Study n=2713 Open-label
Non-linear association between dietary fiber intake and cognitive function mediated by vitamin E: a cross-sectional …
Dose: Inflection at 29.65 g/day (DSST), 22.65 g/day (composite) vs.: Cross-sectional fiber intake groups Outcome: Cognitive function composite z-scores (DSST, AFT, CERAD) Wirkung: β=0.18 per unit fiber below inflection <0.0001

Population: NHANES adults aged ≥60 years (2011-2014)

Review
The Role of Vitamins in Neurodegeneration: A Brief Review of Mechanisms, Clinical Evidence, and Therapeutic …
Dose: None vs.: None Outcome: None Wirkung: None None

Population: Review of vitamins in neurodegeneration

Review
Bioactive compounds and dietary patterns in Alzheimer's disease.
Dose: None vs.: None Outcome: AD progression and cognitive decline Wirkung: None None

Population: Elderly with or at risk of Alzheimer's disease (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 Wirkung: SMD=0.62 (energy-protein); SMD=-0.40 (B-vitamins) 0.009 (protein); 0.02 (B-vit)

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

Key Statistics

12

Studien

3000

Teilnehmer

Mixed

C

Bewertung

Referenced Papers

Journal of Alzheimer's … 2025 3 Zitierungen
American journal of … 2025
European geriatric medicine 2023 10 Zitierungen
Nutrients 2022 76 Zitierungen
Healthcare (Basel, Switzerland) 2021 7 Zitierungen
Annals of the … 2016 162 Zitierungen
Parkinsonism & related … 2015 100 Zitierungen
The British journal … 2015 62 Zitierungen
Nutrition reviews 2014 25 Zitierungen
Plant foods for … 2013 155 Zitierungen
Orphanet journal of … 2011 158 Zitierungen
American family physician 2011
TheScientificWorldJournal 2009 38 Zitierungen
Clinica chimica acta; … 2006 134 Zitierungen
Archives of neurology 2002 354 Zitierungen
The Proceedings of … 2002 191 Zitierungen
Asia Pacific journal … 2002 24 Zitierungen
Current opinion in … 1998 30 Zitierungen

Dosage & Usage

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

Übliche Dosierungen

general:
15 mg/day (RDA)
cognitivesupport:
400-800 IU/day

Obergrenze: 1,000 mg/day (1,500 IU natural / 1,100 IU synthetic)

In der Forschung untersuchte Dosierungen

Dosierung Dauer Wirkung N
None -- Positive 80488
Curcumin 800mg/d, omega-3 2g/d, resveratrol 600mg/d -- Mixed --
Inflection at 29.65 g/day (DSST), 22.65 g/day (composite) -- Positive 2713
None -- Mixed --
None -- Positive --
None -- Mixed --
None -- Positive --
None -- Mixed --

Beste Einnahmezeit: With meals containing fat

Safety & Side Effects

Gemeldete Nebenwirkungen

  • Increased bleeding risk at high doses
  • Nausea and diarrhea
  • Fatigue and weakness
  • Blurred vision

Bekannte Wechselwirkungen

  • Anticoagulants (increased bleeding risk)
  • Statins and niacin (may reduce HDL-raising effects)
  • Chemotherapy and radiation (may reduce efficacy)

Tolerierbare Höchstaufnahmemenge: 1,000 mg/day (1,500 IU natural / 1,100 IU synthetic)

Konsultieren Sie immer Ihren Arzt, bevor Sie ein Nahrungsergänzungsmittel einnehmen.Konsultieren Sie immer Ihren Arzt, bevor Sie ein Nahrungsergänzungsmittel einnehmen.

Frequently Asked Questions

Does Vitamin E help with Age-Related Cognitive Decline?
Based on 12 studies with 3,000 participants, there is limited but promising evidence that Vitamin E may support Age-Related Cognitive Decline management. Our evidence grade is C (Some Evidence).
How much Vitamin E should I take for Age-Related Cognitive Decline?
Studies have used various dosages. A commonly studied range is 15 mg/day (RDA). Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Vitamin E?
Reported side effects may include Increased bleeding risk at high doses, Nausea and diarrhea, Fatigue and weakness, Blurred vision. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Vitamin E and Age-Related Cognitive Decline?
We rate the evidence as Grade C (Some Evidence). This rating is based on 12 peer-reviewed studies with 3,000 total participants. The overall direction of effect is mixed.

Related Evidence

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