How zinc tab benefit our body? Why they are recommended with vitamin c? I regularly take vit-c , but I dont know about zinc, also I heard a little bit about it, that people use to protect from corona. Formerly some years ago I watch ads on tv that zinc tab , is given to infants suffering from diarrhoea with ors, Then is it also useful for adults. If yes. Which mg is for adults , what should be the doses?