High-dose zinc supplementation (e.g., 80mg/day) for a few days during illness may lessen respiratory illness symptoms and decrease duration of illness.

“supplementing with Inc at a level of anywhere from 90 to 100 milligrams per day probably no more than 120 per day seems like a logical way to Stave off colds and flu and reduce the duration of a cold or flu should you contract one”

“one of the more interesting aspects of supplementing with zinc that I was able to find in the literature is a three times faster recovery rate for people that already contracted a cold”

“zinc and potentially an acetal cysteine that can be beneficial in shortening the duration of colds or flu and perhaps even helping us avoid getting colds or flu all together”

“and you know i mean zinc probably has one of the best evidence in regards to if you get a cold or an upper respiratory tract infection and you take zinc within the first 24 hours you dose it correctly you take it every two hours um you need about 18 milligrams of ionic zinc if you're using a lozenge and you have to get over 75 milligrams of zinc total per day for this to work but you can almost eliminate the entire duration of a common cold if you do that type of regimen”

“A meta-analysis of three trials, found that supplementation with zinc acetate loss hinges around 80 to 90 milligrams a day found that they had a threefold faster recovery rate from the common cold compared to a placebo.”

“Another meta-analysis of seven separate trials using either zinc acetate or zinc gluconate lozenges found they reduced the common cold duration by 33% compared to placebo.”

“the exception of people doing a little bit of a mega sort of a higher dose of zinc would be during illness or the onset of illness where higher zinc dose supplementation like in the order of for example 80 milligrams a day has been shown to lessen respiratory illness symptoms and decrease duration of illness as well”