Supplement

Zinc lozenges

Supplement.

How to take it

There is no established standard dose for this case; it is advisable to consult a professional.

Safety

High doses only for a few days; excess zinc interferes with copper.

Effect by goal · level of evidence

Duration of the common cold

reduces Moderate meta-analysis (AAA)

33%

Meta-analysis of 7 trials (575 people): zinc lozenges (acetate or gluconate, >75 mg/day) started early shortened the common cold by 33% on average. A real effect; dose and starting at the onset of symptoms matter.

View the study (meta-analysis) →

In depth

Supplement · Highest evidence: Moderate · 1 finding

⚠️ High doses for only a few days; excess zinc interferes with copper.

Findings

Duration of the common cold — reduces (Moderate, meta-analysis). Meta-analysis of 7 trials (575 people): zinc lozenges (acetate or gluconate, >75 mg/day) started early shortened the cold by an average of 33%. A real effect; the dose and starting at the onset of symptoms matter. 28515951

Information, not medical advice. Prescription drugs require a doctor.

Information, not medical advice. Scientific evidence reflects the quality of the studies.