How does N-Acetyl cysteine (NAC) work for treating cold symptoms?
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N-Acetyl cysteine (NAC) works as a treatment for cold symptoms primarily because it acts as a powerful mucolytic. This means it helps to break down mucus, making it easier to expel from the body, thereby alleviating congestion and sinus pressure. shares his personal experience of using NAC when congested, stating it significantly eased his symptoms by allowing mucus to flow out more freely, hence relieving pressure in the sinuses 1.
NAC is a precursor to glutathione, which is known as the “master antioxidant” of the body. It helps reduce reactive oxygen and nitrogen species, which are compounds that increase notably during infectious states. By increasing glutathione, NAC can help support the immune system and reduce oxidative stress, potentially aiding recovery from infections like colds and the flu 2.
Furthermore, there are studies showing NAC could decrease the incidence of influenza-like symptoms by enhancing cell-mediated immunity, even if more large-scale studies are needed to fully understand its preventive effects 1.
