# Zinc Lozenges May Shorten Colds

> Zinc lozenges can shorten colds by 2.4 days but require high doses and proper form.
- Title: Zinc Lozenges May Shorten Colds · PolitiFact | Shortify
- Summary: Zinc lozenges can shorten colds by 2.4 days but require high doses and proper form. Zinc lozenges may reduce cold duration by 2.4 days when taken in high…
- Keywords: zinc lozenges, cold treatment, common cold, zinc dosage, cold duration, side effects, zinc acetate, zinc gluconate, zinc orotate, fda warnings, nasal sprays, cold symptoms
- Source: PolitiFact — https://politifact.com/article/2026/oct/21/zinc-common-cold-prevent-help-lozenges
- Author: Grace Abels
- Published: 2026-10-21T19:41:51+00:00
- Read time: 1 min
- Topics: zinc lozenges, cold treatment, common cold, zinc dosage, cold duration, side effects, zinc acetate, zinc gluconate, zinc orotate, fda warnings, nasal sprays, cold symptoms
## Zinc Lozenges for Cold Treatment
Zinc lozenges have become a popular cold treatment, but evidence about their effectiveness is mixed.
## Zinc May Shorten Colds
A 2024 Cochrane review found zinc may reduce cold duration by 2.4 days compared to placebo.
## Zinc Dose Variability
Zinc doses in studies ranged from 0.044 milligrams to 296 milligrams per day across different formulations.
## Zinc Lozenges Require High Doses
Daily doses over 75 milligrams of zinc lozenges show cold-shortening benefits, but common brands contain only 11-13 milligrams.
## Zinc Side Effects
Zinc lozenges can cause nausea, bad taste, and diarrhea, which may deter regular use.
## Zinc Safety Concerns
Zinc doses up to 40 milligrams daily are safe for short-term cold treatment but risk copper deficiency with regular use.
## Zinc Nasal Sprays Risk Smell Loss
Zinc nasal sprays have been linked to permanent smell loss, leading to FDA warnings about several products.
## Expert Recommendations
Dr. Harri Hemilä and Dr. Mark H. Ebell advise consulting a doctor before adding zinc lozenges to your routine.
## Zinc for Cold Treatment
Zinc lozenges may shorten colds by 2.4 days when taken in high doses, but regular use risks side effects.
## Key takeaway

Zinc lozenges may reduce cold duration by 2.4 days when taken in high doses, but regular use risks side effects.