About NAC
NAC is a precursor to glutathione, the body's primary intracellular antioxidant. Supports liver detoxification, respiratory health, and cellular defense against oxidative stress. Well studied for acetaminophen toxicity and as a mucolytic. Generally well tolerated; may cause GI discomfort at higher doses. No established RDA/UL.
What NAC supports
- Supports glutathione production, the body's master antioxidant
- Supports liver detoxification and cellular protection
- Supports respiratory health and mucus clearance
- May support healthy aging through oxidative stress defense
How much NAC to take
Clinical studies typically use 600–1800 mg of NAC. Most studies use 600–1200 mg/day. Higher doses (up to 1800 mg) used in some clinical contexts. Often taken in divided doses.
- Effective range
- 600–1800 mg
Clinical evidence
Moderate clinical evidence. Precursor to glutathione with established medical use for acetaminophen toxicity and mucolytic therapy
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