But quality of evidence variable, and no clarity on optimal formulation or dose.
A zinc supplement might help stave off the symptoms of respiratory tract infections, such as coughing, congestion, and sore throat, and cut illness duration, suggests a pooled analysis of the available evidence, published in the open access journal BMJ Open.
But the quality of the evidence on which these findings are based is variable, and it’s not clear what an optimal formulation or dose of this nutrient might be, caution the researchers.
Respiratory tract infections include colds, flu, sinusitis, pneumonia, and (function(d, s, id){
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