Vitamin C Cold Meta-analysis: What the Evidence Says

Quick Answer

Vitamin C Cold Meta-analysis has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are systematic review, so conclusions should be framed as evidence-aware guidance rather than medical advice.

Key Takeaways

• This page is generated only from sources stored in the Migaku evidence knowledge base.
• Current evidence mix: 2 systematic review.
• Claims should be interpreted with the source type, study design, population, and publication date in mind.
• This article is educational and does not replace care from a qualified clinician.

Evidence Map

What The Sources Report

• Puntilo's survey of discomfort symptoms in critically ill patients found that thirst ranked second in prevalence, with severe thirst affecting up to 70% of patients. [Shen Xiaowen (2026); evidence level 1]
• Additionally, it can alter the oral environment and acidity, leading to dysbiosis of the oral microbiota and proliferation of opportunistic pathogens, increasing the risk of oral mucosal lesions, ulcers and infections. [Shen Xiaowen (2026); evidence level 1]
• Furthermore, CIVD has been shown to influence cold-injury risk and may help predict performance and functional capability when exposed to austere cold environments. [Weller Rebecca S. (2026); evidence level 1]
• An additional 45 articles from a personal database were added to the Scopus database, and duplicate analysis showed that 15 of those 45 were not found in the initial Scopus results for diverse reasons, such as it originated from an unindexed journal, or it contained unusual keywords. [Weller Rebecca S. (2026); evidence level 1]

How To Read This Evidence

Evidence level 1 generally reflects systematic reviews or meta-analyses. Level 2 includes randomized trials, guidelines, or public-health guidance. Level 3 usually reflects observational or narrative-review evidence. Level 4 is weaker or early-stage evidence. The level is a sorting aid, not a final quality grade.

Practical Interpretation

There is at least one systematic-review style source in the current set, so it deserves more weight than single-study evidence. For vitamin C cold meta-analysis, the next editorial step is to add more targeted sources and separate strong findings from early or indirect evidence.

Limits Of This First Pass

This is a small-batch MVP article. It uses the first ingested sources for this topic and should be expanded with more targeted searches, license review, and human editorial checks before being treated as a definitive review.

References

• Shen Xiaowen (2026). Effects of Non‐Pharmacological Interventions on Degree of Thirst and Oral Mucosal Moisture in Critically Ill Patients: A Systematic Review and Meta‐Analysis. DOI: 10.1111/nicc.70541. PMCID: PMC13250671. PMID: 42266163. License: https://creativecommons.org/licenses/by-nc-nd/4.0/ http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open .... https://pmc.ncbi.nlm.nih.gov/articles/PMC13250671/
• Weller Rebecca S. (2026). Cold-induced vasodilation: A meta-analysis. DOI: 10.1080/23328940.2026.2646391. PMCID: PMC13251525. PMID: 42282897. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13251525/

Safety Note

Health information can change, and individual risk depends on medical history, medications, pregnancy status, age, and diagnosis. Talk with a qualified clinician before changing treatment, supplement, or medication routines.