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Cold and Flu Prevention: Fact vs. Fiction

January 08, 2020 / SHARON ORRANGE,

Cold and flu season is here. The common cold, often caused by rhinoviruses, is the most common human illness and comes with generally mild symptoms. The flu, caused by the influenza virus, can have more complicated symptoms. Both are contagious. So, what can you do to not get sick? That’s a question primary care doctors hear daily in the office. Let’s take a look at where the evidence lies. Perhaps the best-studied supplement for cold prevention is vitamin C. Unless you are a marathoner or heading to extremely cold temperatures, taking vitamin C has no more benefit than taking a placebo for the prevention of colds. I know. I’m sorry.