The Claim
The low antiviral activity of zinc salts against rhinoviruses in vitro indicates that any beneficial effects of zinc lozenges on common cold symptoms are unlikely to be mediated by direct antiviral mechanisms.
What the research says
Not yet evaluated
We are still looking at what the research says.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Zinc lozenges might help with cold symptoms, but lab tests show zinc doesn't really fight cold viruses directly, so there's probably another reason they work.
See the scientific wording
The low in vitro antiviral activity of zinc salts against rhinoviruses suggests that any beneficial effects of zinc lozenges on cold symptoms may not be due to direct antiviral action against the virus.
What the research says
1 studyStudy: In vitro activity of zinc salts against human rhinoviruses
The study looked at how well zinc salts fight cold viruses in a lab and found they don't work very well, which backs up the idea that zinc lozenges might help cold symptoms in other ways, not by directly killing the virus.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.