N-Acetyl Cysteine for Oxidative Stress & Neuroinflammation
BAs a glutathione precursor, NAC provides potent antioxidant and anti-inflammatory neuroprotection. Combined with selenium, research suggests synergistic protection against oxidative brain injury.
The Bottom Line
As a glutathione precursor, NAC provides potent antioxidant and anti-inflammatory neuroprotection. Combined with selenium, research suggests synergistic protection against oxidative brain injury.
Key Study Findings
Population: expert consensus on therapeutics for provoked vestibulodynia
Population: 3D in vitro gut-peripheral nerve axis model
Population: Preclinical neurodegenerative disease models
Population: Preclinical models
Population: Depression patients
Population: Aging brain and NDD models (review)
Key Statistics
12
Studies
800
Participants
Positive
Grade
Referenced Papers
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
Commonly Used Dosages
- general:
- 600-1,800 mg/day
- neuroprotection:
- 1,200-2,400 mg/day
Upper limit: Not established as supplement; 6,000+ mg/day used clinically (IV)
Dosages Studied in Research
| Dosage | Duration | Effect | N |
|---|---|---|---|
| None | -- | Neutral | -- |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
| Various phytochemicals | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
Best taken: On empty stomach; split into 2-3 doses; supplement zinc if using long-term
Safety & Side Effects
Reported Side Effects
- ⚠ Nausea and vomiting
- ⚠ Diarrhea
- ⚠ Unpleasant sulfur taste/smell
- ⚠ Rare: bronchospasm (inhaled form)
- ⚠ Long-term use may deplete zinc stores
Known Interactions
- ● Nitroglycerin (may enhance hypotensive effects)
- ● Activated charcoal (reduces NAC absorption)
- ● Anticoagulants (theoretical interaction)
Tolerable upper intake: Not established as supplement; 6,000+ mg/day used clinically (IV)
Always consult your healthcare provider before starting any supplement.
Frequently Asked Questions
Does N-Acetyl Cysteine help with Oxidative Stress & Neuroinflammation?
How much N-Acetyl Cysteine should I take for Oxidative Stress & Neuroinflammation?
Are there side effects of N-Acetyl Cysteine?
How strong is the evidence for N-Acetyl Cysteine and Oxidative Stress & Neuroinflammation?
Related Evidence
Other ingredients for Oxidative Stress & Neuroinflammation
N-Acetyl Cysteine for other conditions
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.