Harri Hemila's meta-analysis of 13 placebo-controlled trials found daily zinc doses under 75 mg had no effect on colds, while zinc acetate above 75 mg a day averaged a 42 percent shorter cold and other zinc salts a 20 percent reduction. Adverse effects included bad taste.
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Disease
A Simple, Inexpensive Trick to Cure a Cold
Mercola notes Americans catch more than a billion colds a year, that colds come from viruses so antibiotics are useless against them, and that hand-to-hand contact spreads them more than coughing. He argues an impaired immune system is what turns exposure into illness.
Disease
What's the Difference Between a Cold and the Flu?
A cold builds over several days, starting with a scratchy throat and running nose, while flu strikes after a 3-4 day incubation with severe body aches, high fever, sore throat and cough. Cold sufferers can still function minimally; flu patients are left helpless.
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