The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
Might consider taking NAC over a winter season as 600 mg twice a day reduced the number of people with symptoms of Flu (not those infected) from 79% to 25% in a Multicenter, Randomized Double-blinded Placebo Controlled trial
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whether or not you decide to use netal cysteine as a preventative and there again the dosage is about 1,200 milligrams per day divided into two different dosages of 600 milligrams each
NAC prevented the symptomatic forms caused by here they're talking about the ah1n1 influenza virus quite efficiently since the large majority of infected subjects in the placebo group 79% developed clinically apparent disease versus only 25% in the knat group
there's a paper dating back to 1997 entitled attenuation of influenza-like symptomology and Improvement of cellmediated immunity with long-term anical cinee treatment now in this study they looked at people who were taking 600 milligrams of anal cysteine twice per day for 6 months and what
now in this study they looked at people who were taking 600 milligrams of anal cysteine twice per day for 6 months and what they observed is that the people who took anical cysteine had a significantly lower probability of Contracting influenza
this was a multi-centered double blinded Placebo controlled trial right so you're eliminating a lot of the confounders and what they did was in a winter season so I think it was over six three to six months people were taking 600 milligrams of knack twice a day and what they did was they looked to see how many people got infected and what they're symptoms were and it while it did not reduce the number of infections from influenza there was a significant reduction in the symptoms of influenza
so that's that's about a 50% uh absolute risk reduction which if you do the math it's a number needed to treat of two which is extremely low and very amazing
and what they did was in a winter season so I think it was over six three to six months people were taking 600 milligrams of knack twice a day and what they did was they looked to see how many people got infected and what they're symptoms were and it while it did not reduce the number of infections from influenza there was a significant reduction in the symptoms of influenza so infections no it doesn't reduce but symptoms dramatically
And there the data are pretty interesting. There's at least one study showing that it reduced flu transmission um where people were deliberately exposed to flu. I think it took the number of people that contracted flu compared to the placebo group somewhere from the high 70% area. I'm don't remember the exact number now. We'll put a link to the study down to maybe high 20s which is pretty impressive.
There's a study that showed that it improves symptoms in the flu virus, we don't know if it helps in COVID-19. But and as we talked about earlier with ACE2 and the fact that there's oxidative stress, you know, NAC is a great antioxidants. It's packed with antioxidants. And recycles the glutathione peroxidase system, which is helpful in dealing with oxidative stress.