NAC (N-Acetyl Cysteine)

Immune

Glutathione precursor used clinically for liver protection (acetaminophen overdose). Strong evidence for OCD, COPD, and PCOS.

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Typical dose

600–1800 mg daily

Evidence

Strong (multiple RCTs / meta-analyses)

Onset time

Acute and cumulative

Half-life

~6 hours

Forms

Capsule, Powder

Source

synthetic

Best taken with

empty stomach or with food

Best time of day

any

Bioavailability

3/5

Safety rating

4/5

Price per serving

$0.22

Vegan / GF / 3rd-party

✓ / ✓ / ✓

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Common uses

• Liver protection
• Lung health
• OCD / mental health
• PCOS

Effect profile

Strength

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Focus

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Mood

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Sleep

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Immunity

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Recovery

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Common side effects

• Sulfur smell
• GI upset
• Headache

Avoid if

• Asthma (rare bronchospasm)

Drug interactions

• Nitroglycerin
• Anticoagulants
• Activated charcoal

Related immune supplements

NAC (N-Acetyl Cysteine) vs Quercetin

Medical disclaimer

SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements.