Some people might even take zinc supplements to try and prevent colds altogether. But much like the rest of the supplement world in the United States, zinc is highly unregulated.

Many people claim zinc supplements can prevent colds, shorten their duration or reduce the severity of symptoms. But the evidence remains inconclusive. To stream 10 Tampa Bay on your phone, you ...

Some studies suggest zinc supplements may reduce cold length, but the evidence remains inconclusive. Long-term zinc use in high doses can also lead to health issues. Skip Navigation.