Lutein & Zeaxanthin ： Age-Related Cognitive Decline

Q: 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).

Q: 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.

Q: 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.

Q: 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.

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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結論

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 効果: HR 1.87 (95% CI 1.26-2.77) None

対象集団: 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 効果: 22.73% BBB permeability at 12h None

対象集団: In vitro BBB model and stability tests

Review

Carotenoids for Antiaging: Nutraceutical, Pharmaceutical, and Cosmeceutical Applications.

Dose: None vs: None Outcome: None 効果: None None

対象集団: 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) 効果: None 0.007 (fiber), 0.004 (K)

対象集団: Community-dwelling older adults aged 65+

Review

Therapeutic Potentials of the Seaweed-Derived Compounds for Alzheimer's Disease.

Dose: None vs: None Outcome: None 効果: None None

対象集団: 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 効果: Beta=0.53, p=0.04 for lutein moderation 0.02

対象集団: Adults, mean age 38.6, 70% female

Key Statistics

研究数

600

参加者数

↑

Positive

グレード

Referenced Papers

Carotenoids for Antiaging: Nutraceutical, Pharmaceutical, and Cosmeceutical Applications. Review

Pharmaceuticals (Basel, Switzerland) 2025 28 件の引用

Apolipoprotein E ε4-dependent associations between carotenoids and cognitive decline: Findings from the MIND (Mediterranean-DASH Intervention for Neurodegenerative delay) randomized controlled … RCT

The American journal … 2025 2 件の引用

Low Intake of Total Antioxidant Nutrients as a Risk Factor for Incident Dementia in Older Adults: The Shanghai Aging Study. Other

Neuroepidemiology 2025 1 件の引用

Construction and In Vitro Evaluation of Brain-Targeted Lutein Liposomes. Other

Foods (Basel, Switzerland) 2025 1 件の引用

Vascular Roads to a Healthier Brain: Lutein Moderates the Influence of Arterial Stiffness on Cognitive Function. Other

The Journal of … 2025

Therapeutic Potentials of the Seaweed-Derived Compounds for Alzheimer's Disease. Review

Molecules (Basel, Switzerland) 2025

Association of Habitual Diet Quality and Nutrient Intake with Cognitive Performance in Community-Dwelling Older Adults: A Cross-Sectional Study. Observational

Nutrients 2025

Carotenoid Supplementation for Alleviating the Symptoms of Alzheimer's Disease. Review

International journal of … 2024 11 件の引用

Zeaxanthin and Lutein Ameliorate Alzheimer's Disease-like Pathology: Modulation of Insulin Resistance, Neuroinflammation, and Acetylcholinesterase Activity in an Amyloid-β Rat Model. Other

International journal of … 2024 4 件の引用

[Egg components involved in cognitive function]. Review

Nutricion hospitalaria 2024 4 件の引用

Micronutrients, Frailty, and Cognitive Impairment: Design and Preliminary Results from the CogLife 2.0 Study. Other

Journal of Alzheimer's … 2024 1 件の引用

Dietary patterns and carotenoid intake: Comparisons of MIND, Mediterranean, DASH, and Healthy Eating Index. Other

Nutrition research (New … 2024 1 件の引用

Sustaining an ageing population: the role of micronutrients in frailty and cognitive impairment. Review

The Proceedings of … 2023 27 件の引用

Effects of Long-Chain Polyunsaturated Fatty Acids in Combination with Lutein and Zeaxanthin on Episodic Memory in Healthy Older Adults. RCT

Nutrients 2023 12 件の引用

Higher intake of certain nutrients among older adults is associated with better cognitive function: an analysis of NHANES 2011-2014. Other

BMC nutrition 2023 10 件の引用

Dietary nutrient intake and cognitive function in the Age-Related Eye Disease Studies 1 and 2. Observational

Alzheimer's & dementia … 2023 7 件の引用

Omega-3 fatty acid, carotenoid and vitamin E supplementation improves working memory in older adults: A randomised clinical trial. RCT

Clinical nutrition (Edinburgh, … 2022 87 件の引用

Influence of a 12-Month Structured Exercise Program on the Micronutrient-Cognitive Fitness-Physical Association Profiles in Mild Cognitive Impairment. Other

Journal of Alzheimer's … 2022 4 件の引用

Dietary carotenoids related to risk of incident Alzheimer dementia (AD) and brain AD neuropathology: a community-based cohort of older adults. Other

The American journal … 2021 70 件の引用

Dietary Lutein and Cognitive Function in Adults: A Meta-Analysis of Randomized Controlled Trials. Meta-Analysis

Molecules (Basel, Switzerland) 2021 26 件の引用

Higher circulating α-carotene was associated with better cognitive function: an evaluation among the MIND trial participants. RCT

Journal of nutritional … 2021 26 件の引用

Genetic factors involved in modulating lutein bioavailability. Review

Nutrition research (New … 2021 17 件の引用

Dietary carotenoids and cognitive function among US adults, NHANES 2011-2014. Other

Nutritional neuroscience 2020 72 件の引用

Long-Term Intake of Dietary Carotenoids Is Positively Associated with Late-Life Subjective Cognitive Function in a Prospective Study in US Women. Other

The Journal of … 2020 47 件の引用

Effects of Matcha Green Tea Powder on Cognitive Functions of Community-Dwelling Elderly Individuals. RCT

Nutrients 2020 43 件の引用

Serum xanthophyll carotenoids are associated with estimated glomerular filtration rate in an aged cohort. Other

Scientific reports 2019 6 件の引用

Nutrients and bioactives in green leafy vegetables and cognitive decline: Prospective study. Observational

Neurology 2018 159 件の引用

Lutein and Zeaxanthin Influence Brain Function in Older Adults: A Randomized Controlled Trial. RCT

Journal of the … 2018 76 件の引用

Supplemental Retinal Carotenoids Enhance Memory in Healthy Individuals with Low Levels of Macular Pigment in A Randomized, Double-Blind, Placebo-Controlled Clinical … RCT

Journal of Alzheimer's … 2018 63 件の引用

A Comprehensive Review of Eggs, Choline, and Lutein on Cognition Across the Life-span. Review

Journal of the … 2018 43 件の引用

[Nutrition strategies that improve cognitive function]. Review

Nutricion hospitalaria 2018 32 件の引用

Activities, bioavailability, and metabolism of lipids from structural membranes and oils: Promising research on mild cognitive impairment. Review

Pharmacological research 2018 26 件の引用

Phospholipid oxidation and carotenoid supplementation in Alzheimer's disease patients. Other

Free radical biology … 2017 37 件の引用

The Role of Retinal Carotenoids and Age on Neuroelectric Indices of Attentional Control among Early to Middle-Aged Adults. Other

Frontiers in aging … 2017 28 件の引用

Parahippocampal Cortex Mediates the Relationship between Lutein and Crystallized Intelligence in Healthy, Older Adults. Other

Frontiers in aging … 2016 32 件の引用

Diet and cognitive decline at middle age: the role of antioxidants. Other

The British journal … 2015 62 件の引用

[Advances in the researches of lutein and alzheimer's disease]. Review

Zhonghua yu fang … 2015 4 件の引用

Relationships between macular pigment optical density and cognitive function in unimpaired and mildly cognitively impaired older adults. Other

Neurobiology of aging 2014 98 件の引用

Relationship between Serum and Brain Carotenoids, α-Tocopherol, and Retinol Concentrations and Cognitive Performance in the Oldest Old from the Georgia … Other

Journal of aging … 2013 253 件の引用

Micronutrients supplementation and nutritional status in cognitively impaired elderly persons: a two-month open label pilot study. Other

Nutrition journal 2013 26 件の引用

Reliability and validity of food frequency questionnaire and nutrient biomarkers in elders with and without mild cognitive impairment. Other

Alzheimer disease and … 2011 52 件の引用

Cognitive findings of an exploratory trial of docosahexaenoic acid and lutein supplementation in older women. RCT

Nutritional neuroscience 2008 277 件の引用

Nutritional biomarkers in Alzheimer's disease: the association between carotenoids, n-3 fatty acids, and dementia severity. Other

Journal of Alzheimer's … 2008 104 件の引用

Eating well: ageing gracefully! Review

Asia Pacific journal … 2002 24 件の引用

Dosage & Usage

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

一般的な使用量

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

上限量： Not established; 20 mg/day well-tolerated

研究で検討された用量

用量	期間	効果	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	--

推奨摂取タイミング： With meals containing fat

Safety & Side Effects

報告されている副作用

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

既知の相互作用

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

耐容上限摂取量： Not established; 20 mg/day well-tolerated

サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。

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

に関する他の成分： Age-Related Cognitive Decline

Omega-3 Fatty Acids (DHA/EPA) A Phosphatidylserine B Bacopa monnieri B Vitamin B12 B Curcumin B Ginkgo biloba C

総合評価

Evidence Strength52%

Moderate confidence

研究の内訳

RCT (8)Meta (1)Other (0)

代替成分との比較

この症状に対する他の成分との比較をご覧ください。

に関するすべての成分を見る： Age-Related Cognitive Decline

詳しく見る

FDAに関する免責事項: これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。