Component
Complex attention and reasoning scores in young adults
Complex attention and reasoning scores in young adults. Species, exposure and limitations are retained in each linked claim.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
Attention and reasoning improvements were observed in analyses requiring significant macular-pigment increases.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/lutein-research/29135938.fulltext.txt", "locator": "Primary full-text span; zero-based, end-exclusive Unicode character offsets", "file_sha256": "f60146e188d1a3093c572c3f637ebd659184f72727a75b35afd265b5ef0be71b", "start_char": 21132, "end_char": 25480, "text_sha256": "02d9398a25880c0ead3b3ef0ed91d12a98f837a8c8f89c141986dd926e1010a8"}
- experimental_model
- Small randomized double-masked placebo-controlled trial with biomarker-response analyses
- exposure
- Lutein 10 mg + zeaxanthin 2 mg daily for one year
- limitations
- Small unequal groups and multiple outcomes; attention/reasoning findings depended on pigment-response analysis. MPOD does not directly measure brain tissue.
- nutrient_topic
- Lutein research collection; topical membership is not evidence of a direct dietary effect. · Lutein
- organism
- 51 analyzable healthy adults aged 18–30; 37 active and 14 placebo
- plain_language
- These findings depended on a biomarker-response subgroup.
- primary_references
- [lutein-p29135938] Effects of a Lutein and Zeaxanthin Intervention on Cognitive Function: A Randomized, Double-Masked, Placebo-Controlled Trial of Younger Healthy Adults. (2017). https://pubmed.ncbi.nlm.nih.gov/29135938/ DOI: 10.3390/nu9111246
- tissue_or_cell_type
- Cognitive testing and retinal pigment measurement
Lutein: metabolism, signaling and nutrient connections (2026-09-17) · lines 918–929
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Small randomized double-masked placebo-controlled trial with biomarker-response analyses · source_derived_draft · unverified_draft
### lutein-young-response-dependent Attention and reasoning improvements were observed in analyses requiring significant macular-pigment increases. Condition category: normal nutrient_topic: Lutein research collection; topical membership is not evidence of a direct dietary effect. plain_language: These findings depended on a biomarker-response subgroup. organism: 51 analyzable healthy adults aged 18–30; 37 active and 14 placebo tissue_or_cell_type: Cognitive testing and retinal pigment measurement experimental_model: Small randomized double-masked placebo-controlled trial with biomarker-response analyses limitations: Small unequal groups and multiple outcomes; attention/reasoning findings depended on pigment-response analysis. MPOD does not directly measure brain tissue. exposure: Lutein 10 mg + zeaxanthin 2 mg daily for one year evidence_span: {"source_cache": "artifacts/lutein-research/29135938.fulltext.txt", "locator": "Primary full-text span; zero-based, end-exclusive Unicode character offsets", "file_sha256": "f60146e188d1a3093c572c3f637ebd659184f72727a75b35afd265b5ef0be71b", "start_char": 21132, "end_char": 25480, "text_sha256": "02d9398a25880c0ead3b3ef0ed91d12a98f837a8c8f89c141986dd926e1010a8"} [lutein-p29135938] Effects of a Lutein and Zeaxanthin Intervention on Cognitive Function: A Randomized, Double-Masked, Placebo-Controlled Trial of Younger Healthy Adults. (2017). https://pubmed.ncbi.nlm.nih.gov/29135938/ DOI: 10.3390/nu9111246
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.