Taking high-dose zinc lozenges can shorten how long you have a cold by about 3 days, especially for adults between 20 and 50 years old.

Taking high-dose zinc lozenges right when you start feeling a cold can shorten how long you're sick by almost half, according to studies in adults.

Taking zinc lozenges with a certain ingredient can shorten how long you have a cold by almost half, according to studies on people with real colds.

Taking zinc acetate lozenges when you have a cold can help you get better faster, cutting down how long you're sick by about 2 to 3 days.

Taking high-dose zinc lozenges every day might help adults get over colds faster—cutting how long you're sick by more than a third compared to not taking them.

Taking special high-strength zinc lozenges when you have a cold can help you get better about three days faster.