Visually assessed UV minimal erythema dose: molecular mechanisms & dependencies

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.

Human evidence only

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.

Recorded relationships

What acts on it

The visually assessed minimal erythema dose did not differ significantly between groups.
Study-specific tomato paste food intervention → Visually assessed UV minimal erythema dose source_derived_draftungraded
Experimental context and source evidence
evidence_span
{"source_cache": "artifacts/lycopene-research/20854436.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "70a295ef309afb9296521357fe29b70f532c2fd215687c918b94ee027aa707ba", "start_char": 0, "end_char": 2063, "text_sha256": "70a295ef309afb9296521357fe29b70f532c2fd215687c918b94ee027aa707ba"}
experimental_model
Randomized tomato-paste versus olive-oil trial
exposure
55 g tomato paste providing 16 mg lycopene daily in olive oil for 12 weeks
limitations
Whole food exposure; UV endpoints differ; not evidence that lycopene replaces sunscreen or prevents skin cancer.
nutrient_topic
Lycopene research collection; topical membership is not evidence of a direct dietary effect. · Lycopene
organism
Human, 20 women with skin phototypes I/II
plain_language
A different redness endpoint did not show the same statistical result.
primary_references
[lycopene-p20854436] Tomato paste rich in lycopene protects against cutaneous photodamage in humans in vivo: a randomized controlled trial. (2011). https://pubmed.ncbi.nlm.nih.gov/20854436/ DOI: 10.1111/j.1365-2133.2010.10057.x
tissue_or_cell_type
UV-exposed skin and biopsies
Lycopene: absorption, metabolism, nutrient connections and human outcomes (2026-09-17) · lines 1196–1207
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Randomized tomato-paste versus olive-oil trial · source_derived_draft · unverified_draft
### lycopene-skin-med-null The visually assessed minimal erythema dose did not differ significantly between groups. Condition category: normal nutrient_topic: Lycopene research collection; topical membership is not evidence of a direct dietary effect. plain_language: A different redness endpoint did not show the same statistical result. organism: Human, 20 women with skin phototypes I/II tissue_or_cell_type: UV-exposed skin and biopsies experimental_model: Randomized tomato-paste versus olive-oil trial limitations: Whole food exposure; UV endpoints differ; not evidence that lycopene replaces sunscreen or prevents skin cancer. exposure: 55 g tomato paste providing 16 mg lycopene daily in olive oil for 12 weeks evidence_span: {"source_cache": "artifacts/lycopene-research/20854436.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "70a295ef309afb9296521357fe29b70f532c2fd215687c918b94ee027aa707ba", "start_char": 0, "end_char": 2063, "text_sha256": "70a295ef309afb9296521357fe29b70f532c2fd215687c918b94ee027aa707ba"} [lycopene-p20854436] Tomato paste rich in lycopene protects against cutaneous photodamage in humans in vivo: a randomized controlled trial. (2011). https://pubmed.ncbi.nlm.nih.gov/20854436/ DOI: 10.1111/j.1365-2133.2010.10057.x
Complete structured claim and evidence
Neither capsule nor paste showed improvement in visual minimal erythema dose over the ten-week UVB study.
Lycopene → Visually assessed UV minimal erythema dose source_derived_draftungraded
Experimental context and source evidence
evidence_span
{"source_cache": "artifacts/lycopene-research/26024575.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "682051a8b59270407b327cf439145fec1ea55459fd3c6e8236b535f985442d00", "start_char": 0, "end_char": 1667, "text_sha256": "682051a8b59270407b327cf439145fec1ea55459fd3c6e8236b535f985442d00"}
experimental_model
Randomized comparative capsule-versus-paste study
exposure
Ten weeks of capsule or tomato paste
limitations
Small study without an untreated placebo group; differs in UV spectrum and outcomes from the 2011 study.
nutrient_topic
Lycopene research collection; topical membership is not evidence of a direct dietary effect. · Lycopene
organism
Human, 20 enrolled; three withdrew after week four
plain_language
Skin protection was not a consistent result across protocols.
primary_references
[lycopene-p26024575] Lycopene not in pill, nor in natura has photoprotective systemic effect. (2015). https://pubmed.ncbi.nlm.nih.gov/26024575/ DOI: 10.1007/s00403-015-1578-7
tissue_or_cell_type
UVB-induced erythema and serum lycopene
Lycopene: absorption, metabolism, nutrient connections and human outcomes (2026-09-17) · lines 1235–1246
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Randomized comparative capsule-versus-paste study · source_derived_draft · unverified_draft
### lycopene-skin-replication-null Neither capsule nor paste showed improvement in visual minimal erythema dose over the ten-week UVB study. Condition category: normal nutrient_topic: Lycopene research collection; topical membership is not evidence of a direct dietary effect. plain_language: Skin protection was not a consistent result across protocols. organism: Human, 20 enrolled; three withdrew after week four tissue_or_cell_type: UVB-induced erythema and serum lycopene experimental_model: Randomized comparative capsule-versus-paste study limitations: Small study without an untreated placebo group; differs in UV spectrum and outcomes from the 2011 study. exposure: Ten weeks of capsule or tomato paste evidence_span: {"source_cache": "artifacts/lycopene-research/26024575.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "682051a8b59270407b327cf439145fec1ea55459fd3c6e8236b535f985442d00", "start_char": 0, "end_char": 1667, "text_sha256": "682051a8b59270407b327cf439145fec1ea55459fd3c6e8236b535f985442d00"} [lycopene-p26024575] Lycopene not in pill, nor in natura has photoprotective systemic effect. (2015). https://pubmed.ncbi.nlm.nih.gov/26024575/ DOI: 10.1007/s00403-015-1578-7
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

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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.

Visually assessed UV minimal erythema dose