NAC

NAC most commonly refers to N-Acetylcysteine (also written as N-acetyl cysteine or acetylcysteine), a supplement and medication derived from the amino acid L-cysteine.

It’s widely recognized for these key roles:

• FDA-approved to treat acetaminophen (paracetamol/Tylenol) overdose by replenishing glutathione in the liver to detoxify harmful metabolites. It’s also used as a mucolytic to thin and break up thick mucus in respiratory conditions like chronic bronchitis, pneumonia, or cystic fibrosis (often inhaled or taken orally/IV).
• As a dietary supplement, NAC is popular for its antioxidant properties. It boosts glutathione levels (the body’s master antioxidant), helping combat oxidative stress. Potential benefits backed by research include:
  • Supporting liver and kidney health/detoxification.
  • Improving respiratory function by reducing mucus and inflammation.
  • Mental health support (e.g., as an adjunct for conditions like OCD, depression, bipolar, schizophrenia, or addiction, via glutamate modulation and reducing inflammation).
  • General antioxidant and anti-inflammatory effects, with emerging studies on uses in cancer support, fertility, or neurodegenerative conditions (though evidence varies and it’s not a proven cure for most).

Typical supplement doses range from 600–1,800 mg per day, often split into doses, but consult a healthcare provider—especially if you have conditions like asthma (rare bronchospasm risk) or are on medications.