Studies related to Symptoms of the Common Cold and Zinc

Zinc Lozenges And The Common Cold: A Meta-analysis Comparing Zinc Acetate And Zinc Gluconate, And The Role Of Zinc Dosage

Effect Decrease
Values Overall Mean difference (% of placebo duration) and 95% CI: -33.31 (-45.28, -21.34). Acetate: -40.49 (-50.17, -30.81). Gluconate: -28.36 (-50.05, -6.68)
Trial Design Meta analysis
Trial Length n/a
Number of Subjects 575
Sex Both Genders
Notes for this study:
A meta-analysis was conducted on placebo-controlled trials using zinc lozenges for naturally acquired common colds using a dose of over 75 mg daily.

7 Trials were included, 3 using zinc acetate, and 4 using zinc gluconate. All trials were double-blind. There was a statistically significant reduction in overall cold duration and in both zinc gluconate and acetate trials, with zinc acetate being somewhat more effective.

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