supplements for colds and flu

Demand will continue rising for supplements for colds and flu...despite the lack of hard evidence for most of them.

Nasal saline irrigation can reduce nasal congestion, sore throat, and cough. Suggest irrigating once a day or more often if needed.

Zinc lozenges might help decrease a cold's duration. But caution that zinc has a metallic taste and too much can lead to copper deficiency.

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