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Lutein & Zeaxanthin per Age-Related Cognitive Decline

C

A 6-month RCT showed macular xanthophylls increased serum BDNF, reduced IL-1beta, and improved composite memory, psychomotor speed, and sustained attention. Macular pigment optical density correlates with cognitive performance.

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C

In sintesi

A 6-month RCT showed macular xanthophylls increased serum BDNF, reduced IL-1beta, and improved composite memory, psychomotor speed, and sustained attention. Macular pigment optical density correlates with cognitive performance.

Key Study Findings

Cohort Study n=1550 270 weeks
Low Intake of Total Antioxidant Nutrients as a Risk Factor for Incident Dementia in Older …
Dose: >=112 mg/day vs <112 mg/day vs: Low AN intake (<112 mg/day) Outcome: Incident dementia Effetto: HR 1.87 (95% CI 1.26-2.77) None

Popolazione: Community residents without dementia aged >=60 years

In Vitro
Construction and In Vitro Evaluation of Brain-Targeted Lutein Liposomes.
Dose: None vs: Free lutein Outcome: BBB permeability and lutein stability Effetto: 22.73% BBB permeability at 12h None

Popolazione: In vitro BBB model and stability tests

Review
Carotenoids for Antiaging: Nutraceutical, Pharmaceutical, and Cosmeceutical Applications.
Dose: None vs: None Outcome: None Effetto: None None

Popolazione: systematic review of carotenoids for antiaging (nutraceutical, pharmaceutical, cosmeceutical)

Observational Study n=72
Association of Habitual Diet Quality and Nutrient Intake with Cognitive Performance in Community-Dwelling Older Adults: …
Dose: None vs: None Outcome: Cognitive performance (CERAD battery) Effetto: None 0.007 (fiber), 0.004 (K)

Popolazione: Community-dwelling older adults aged 65+

Review
Therapeutic Potentials of the Seaweed-Derived Compounds for Alzheimer's Disease.
Dose: None vs: None Outcome: None Effetto: None None

Popolazione: None

Observational Study n=60
Vascular Roads to a Healthier Brain: Lutein Moderates the Influence of Arterial Stiffness on Cognitive …
Dose: None vs: None Outcome: Carotenoid moderation of cfPWV-cognition relationship Effetto: Beta=0.53, p=0.04 for lutein moderation 0.02

Popolazione: Adults, mean age 38.6, 70% female

Key Statistics

8

Studi

600

Partecipanti

Positive

C

Grado

Referenced Papers

Pharmaceuticals (Basel, Switzerland) 2025 28 citazioni
Foods (Basel, Switzerland) 2025 1 citazioni
International journal of … 2024 11 citazioni
Nutricion hospitalaria 2024 4 citazioni
Nutrition research (New … 2021 17 citazioni
Nutricion hospitalaria 2018 32 citazioni
The British journal … 2015 62 citazioni
Zhonghua yu fang … 2015 4 citazioni
Asia Pacific journal … 2002 24 citazioni

Dosage & Usage

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

Dosaggi di uso comune

general:
10-20 mg lutein + 2-4 mg zeaxanthin/day
cognitivesupport:
12 mg lutein + zeaxanthin/day

Limite massimo: Not established; 20 mg/day well-tolerated

Dosaggi studiati nella ricerca

Dosaggio Durata Effetto N
>=112 mg/day vs <112 mg/day 270 weeks Positive 1550
None -- Positive --
None -- Positive --
None -- Positive 72
None -- Mixed --
None -- Positive 60
None 156 weeks Positive 442
MIND, Mediterranean, DASH, HEI-2015 diets -- Positive --

Momento migliore per l'assunzione: With meals containing fat

Safety & Side Effects

Effetti collaterali segnalati

  • Generally very well-tolerated
  • Mild skin yellowing at very high doses (carotenodermia, harmless)

Interazioni note

  • Orlistat (reduces carotenoid absorption)
  • Cholesterol-lowering drugs (may reduce absorption)

Livello di assunzione massimo tollerabile: Not established; 20 mg/day well-tolerated

Consultare sempre il proprio medico prima di iniziare qualsiasi integratore.Consultate sempre il vostro medico prima di iniziare qualsiasi integratore.

Frequently Asked Questions

Does Lutein & Zeaxanthin help with Age-Related Cognitive Decline?
Based on 8 studies with 600 participants, there is limited but promising evidence that Lutein & Zeaxanthin may support Age-Related Cognitive Decline management. Our evidence grade is C (Some Evidence).
How much Lutein & Zeaxanthin should I take for Age-Related Cognitive Decline?
Studies have used various dosages. A commonly studied range is 10-20 mg lutein + 2-4 mg zeaxanthin/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Lutein & Zeaxanthin?
Reported side effects may include Generally very well-tolerated, Mild skin yellowing at very high doses (carotenodermia, harmless). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Lutein & Zeaxanthin and Age-Related Cognitive Decline?
We rate the evidence as Grade C (Some Evidence). This rating is based on 8 peer-reviewed studies with 600 total participants. The overall direction of effect is positive.

Related Evidence

Avvertenza FDA: Queste affermazioni non sono state valutate dalla Food and Drug Administration. I prodotti e le informazioni presenti su questo sito web non sono destinati a diagnosticare, trattare, curare o prevenire alcuna malattia. I gradi di evidenza presentati si basano sulla nostra analisi della ricerca pubblicata e sottoposta a revisione paritaria e non costituiscono consulenza medica. Consultate sempre il vostro medico prima di iniziare qualsiasi regime di integrazione.