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NAC

Updated 3/11/2026
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Research Summary

N-Acetyl Cysteine (NAC) is a supplemental form of the semi-essential amino acid cysteine. It serves as a vital precursor to glutathione, often referred to as the body's 'master antioxidant' due to its role in neutralizing free radicals and supporting cellular detoxification. NAC is a stable, bioavailable form of cysteine that has been used for decades both as a nutritional supplement and as an FDA-approved medical treatment for acetaminophen poisoning and respiratory conditions characterized by excessive mucus.

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