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Strong Support
mechanistic
Analysis v1
History

Zinc stops cold viruses from sticking to your nose cells and making copies of themselves, which helps fight off the cold and reduce swelling.

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Evidence from Studies

Supporting (1)

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1

Efficacy of Zinc Against Common Cold Viruses: An Overview

Narrative Review
2004 Sep-Oct

Contradicting (0)

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No contradicting evidence found

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Source Study

Efficacy of Zinc Against Common Cold Viruses: An Overview

Score: 1
DOI: 10.1331/1544-3191.44.5.594.Hulisz

Similar Assertions

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.

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75%

Zinc lozenges don't help reduce how long colds last or how bad they feel, whether you catch a cold naturally or in a study where they give you a cold virus.

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71%

Zinc can stop cold viruses from copying themselves and spreading in lab tests.

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70%