Antioxidant

NAC (N-Acetyl Cysteine)

Also known as: N-Acetyl Cysteine, N-Acetylcysteine, N-Acetyl-L-Cysteine, N-Acetyl Cysteine (NAC) - Detox Focus

Evidence

Precursor to glutathione, the body's master antioxidant. Supports liver, respiratory, and mental health.

Primary uses

Glutathione support
Liver health
Respiratory health
Mental health
Glutathione production
Liver detox
Mucolytic
Acetaminophen antidote
Ovulation
Insulin sensitivity
Antioxidant
PCOS support

How it works

Rate-limiting precursor to glutathione
Mucolytic (thins mucus)
Modulates glutamate
Acetaminophen antidote

Dosage

Typical range: 600-1800 mg daily
Timing: Divided doses, away from food
With food: Away from food for glutathione; with food OK for respiratory
Duration: Safe long-term
Special populations: Liver support, respiratory, OCD/addiction

Forms

Capsules
Powder
Effervescent
IV
Sustained-release

Safety

Common side effects

GI upset
Sulfur smell/taste

Contraindications

Caution active cancer treatment

Evidence notes

Well-studied glutathione precursor

Grade A: Multiple well-designed human trials support the main claims.

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.