
09/12/2025
NAC (N-Acetyl Cysteine) is a supplement form of the amino acid cysteine. It’s well-researched and has several health benefits because it helps replenish glutathione—your body’s master antioxidant—and supports detoxification, lung function, and brain health.
Here are the main benefits of NAC:
1. Powerful Antioxidant Support
NAC boosts glutathione levels, protecting cells from oxidative stress.
Helps reduce free radical damage linked to aging and chronic illness.
2. Liver & Detox Support
Used in hospitals to treat acetaminophen (Tylenol) overdose, protecting the liver.
Supports detoxification pathways by binding to toxins and heavy metals.
3. Respiratory Health
Acts as a mucolytic (thins mucus), making it easier to clear airways.
Helpful in conditions like chronic bronchitis, COPD, asthma, and sinus congestion.
4. Brain & Mental Health
Balances glutamate, an important neurotransmitter.
Studied for benefits in anxiety, depression, bipolar disorder, schizophrenia, and OCD.
May support cognitive function and reduce mental fatigue.
5. Immune Support
Enhances immune cell function.
May reduce severity and duration of colds and respiratory infections.
6. Metabolic & Cardiovascular Support
Helps lower inflammation and improve blood vessel function.
May improve insulin sensitivity and support blood sugar balance.
7. Reproductive Health
Can improve fertility in both men and women by reducing oxidative stress.