Component
Common cold symptom duration
Common cold symptom duration; read each linked claim for the measured context and model.
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
Mean overall cold duration was 4.0 days with zinc versus 7.1 with placebo (P<.0001); cough lasted 2.1 versus 5.0 days and nasal discharge 3.0 versus 4.5 days.
Experimental context and source evidence
- cross_nutrient
- Zinc exposure and the specifically measured response.
- evidence_location
- Indexed primary abstract.
- evidence_span
- {"source_cache": "artifacts/zinc-clinical-sources/prasad2008.abstract.txt", "locator": "Primary indexed abstract; complete local file", "file_sha256": "fbee9b28c3866295933e0baab1770cdaab0b62567ec2787a587522e493051b6e", "utf8_bytes": 1456}
- experimental_model
- Double-blind randomized placebo-controlled trial in 50 adults enrolled within 24 hours of cold onset
- exposure
- One lozenge with 13.3 mg elemental zinc as acetate every 2–3 hours while awake.
- limitations
- Small trial with subjective symptoms; biomarker differences do not prove the proposed antioxidant or anti-inflammatory pathway mediates benefit.
- nutrient_topic
- Zinc research collection; topical membership is not evidence of a direct dietary effect. · Zinc
- organism
- Homo sapiens
- plain_language
- This small acetate-lozenge trial found shorter symptoms.
- primary_references
- [zn-clin-prasad2008] Duration and severity of symptoms and levels of plasma interleukin-1 receptor antagonist, soluble tumor necrosis factor receptor, and adhesion molecules in patients with common cold treated with zinc acetate. (2008). https://pubmed.ncbi.nlm.nih.gov/18279051/ DOI: 10.1086/528803
- tissue_or_cell_type
- Upper respiratory symptoms
Zinc: transport, enzyme loading, deficiency and nutrient interactions (2026-09-17) · lines 1543–1556
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Double-blind randomized placebo-controlled trial in 50 adults enrolled within 24 hours of cold onset · source_derived_draft · unverified_draft
### zn-clin-cold-duration-positive Mean overall cold duration was 4.0 days with zinc versus 7.1 with placebo (P<.0001); cough lasted 2.1 versus 5.0 days and nasal discharge 3.0 versus 4.5 days. Condition category: normal nutrient_topic: Zinc research collection; topical membership is not evidence of a direct dietary effect. plain_language: This small acetate-lozenge trial found shorter symptoms. organism: Homo sapiens tissue_or_cell_type: Upper respiratory symptoms experimental_model: Double-blind randomized placebo-controlled trial in 50 adults enrolled within 24 hours of cold onset limitations: Small trial with subjective symptoms; biomarker differences do not prove the proposed antioxidant or anti-inflammatory pathway mediates benefit. exposure: One lozenge with 13.3 mg elemental zinc as acetate every 2–3 hours while awake. cross_nutrient: Zinc exposure and the specifically measured response. evidence_location: Indexed primary abstract. evidence_span: {"source_cache": "artifacts/zinc-clinical-sources/prasad2008.abstract.txt", "locator": "Primary indexed abstract; complete local file", "file_sha256": "fbee9b28c3866295933e0baab1770cdaab0b62567ec2787a587522e493051b6e", "utf8_bytes": 1456} [zn-clin-prasad2008] Duration and severity of symptoms and levels of plasma interleukin-1 receptor antagonist, soluble tumor necrosis factor receptor, and adhesion molecules in patients with common cold treated with zinc acetate. (2008). https://pubmed.ncbi.nlm.nih.gov/18279051/ DOI: 10.1086/528803
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.