The Claim

In a clinical study, 70% of patients taking zinc acetate lozenges recovered from common colds by day 5 of treatment, compared to 27% of patients on placebo, with a number needed to treat of 2.3.

Source: Zinc Acetate Lozenges May Improve the Recovery Rate of Common Cold Patients: An Individual Patient Data Meta-Analysis

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
67score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Taking zinc lozenges helped more people get better from colds faster. For every 2 to 3 people who take them, one extra person recovers by day 5 compared to those not taking them.

See the scientific wording

On day 5 of treatment, 70% of patients taking zinc acetate lozenges recovered from common colds compared to 27% on placebo, with a number needed to treat of 2.3, meaning 1 of every 2.3 patients benefits by day 5.

What the research says

1 study

  1. Study: Zinc Acetate Lozenges May Improve the Recovery Rate of Common Cold Patients: An Individual Patient Data Meta-Analysis

    The study found exactly what the claim says: zinc lozenges helped more people get better faster from colds compared to placebo.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.