What about COVID-19 and NAC (N-acetyl cysteine)?

General Health
Long-time readers know that my "go-to" sources for natural medicines (herbs, vitamins, and supplements) are ConsumerLab.com and Natural Medicines(TM). ConsumerLab has posted about coronavirus and NAC (N-acetyl cysteine): NAC (N-acetyl cysteine) is a synthetically modified form of the amino acid cysteine (cysteine occurs naturally in foods, whereas NAC does not). In the body, NAC is converted to the antioxidant glutathione. There is very preliminary evidence that NAC may improve certain blood markers of immune system health but there is not sufficient evidence to suggest that NAC supplementation improves the immune system to the extent that it will reduce the occurrence of illness, nor prevent coronavirus infection. A clinical study using 600 mg of NAC taken twice daily during flu season found that it did not prevent infection but fewer infected people were symptomatic. Evidence is…
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