This claim says that zinc lozenges might help shorten colds, and the more zinc your body can use from them, the faster your cold might go away.

Evidence from Studies

Supporting (1)

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Community contributions welcome

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Zinc ion availability--the determinant of efficacy in zinc lozenge treatment of common colds.

Computational/Algorithm Study

1997 Oct

The study looked at zinc lozenges and found that ones with more available zinc ions shorten colds more, exactly as the claim says, so it supports the idea.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Zinc ion availability--the determinant of efficacy in zinc lozenge treatment of common colds.

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DOI: 10.1093/oxfordjournals.jac.a020864

Similar Assertions

Zinc lozenges with a certain chemical property might make your cold last longer—specifically, about 4 extra days—instead of helping you get better faster.

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Zinc lozenges that dissolve properly in your mouth can help you get over a cold faster, cutting down how long you're sick by up to a week.

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Zinc lozenges with more ionic zinc seem to help shorten colds faster, based on studies with lots of people, but the total amount of zinc doesn't matter as much.

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Taking zinc lozenges around 80-90 mg per day can shorten how long you have a cold by about one-third, and taking even more doesn't help much more than that.

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Taking zinc lozenges with a certain amount of zinc each day can help shorten how long a cold lasts in adults by about one-third, based on a big review of studies.

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