What is the recommended dosage for N-Acetylcysteine?

General: 600-1,200 mg/day; Respiratory Support: 600 mg 2-3x/day

What are the side effects of N-Acetylcysteine?

Potential side effects include: Gastrointestinal discomfort (nausea, diarrhea), Unpleasant sulfur taste/smell, Headache, Rare: bronchospasm (in asthma patients, inhaled form).

What is NAC and how does it support the immune system?

N-acetylcysteine (NAC) is a precursor to glutathione, the body's primary intracellular antioxidant. Studies have examined NAC for its potential to support respiratory health, reduce oxidative stress, and maintain immune cell function during illness.

What dosage of NAC has been studied for immune support?

Clinical trials have used NAC at doses of 600–1,800 mg per day, typically divided into two or three doses. For respiratory health outcomes, 600 mg twice daily is a commonly studied regimen over periods of 3 to 6 months.

What are the potential side effects of NAC?

Common side effects include nausea, vomiting, diarrhea, and an unpleasant sulfur taste. NAC may interact with nitroglycerin and certain blood pressure medications. Individuals with asthma should use caution, as inhaled NAC can trigger bronchospasm.

N-Acetylcysteine
N-Acetylcysteine

amino_acid

Aussi connu sous le nom de: NAC, N-Acetyl-L-Cysteine, Acetylcysteine

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About

N-Acetylcysteine (NAC) is a direct precursor of glutathione, the body's master antioxidant. It replenishes intracellular glutathione to protect immune cells from oxidative damage, exhibits mucolytic activity to reduce respiratory mucus, and may modulate NF-kB signaling and inflammatory cascades.

How It Works

Direct precursor of glutathione; replenishes intracellular glutathione to protect immune cells from oxidative damage; exhibits mucolytic activity; may modulate NF-kB signaling and inflammatory cascades.

Evidence For Conditions

Pathologie	Note	Études	Participants
Acute Bronchitis	B	10	1500	Voir →
Post-Viral Fatigue	C	5	400	Voir →

Side Effects

Gastrointestinal discomfort (nausea, diarrhea)
Unpleasant sulfur taste/smell
Headache
Rare: bronchospasm (in asthma patients, inhaled form)

Drug & Supplement Interactions

Nitroglycerin (may enhance vasodilatory and headache effects)
Activated charcoal (reduces NAC absorption)
Anticoagulants (theoretical effect on platelet function)

Informez toujours votre professionnel de santé de tous les compléments alimentaires que vous prenez.Informez toujours votre professionnel de santé de tous les compléments que vous prenez.

Related Ingredients

Glutamine Arginine

En bref

Posologie: General: 600-1,200 mg/day; Respiratory_Support: 600 mg 2-3x/day
Formes: capsule tablet effervescent tablet powder
Sources naturelles: Poultry, Eggs, Dairy, Garlic, Onions, Cruciferous vegetables (as cysteine)
Limite supérieure: No established UL; doses up to 1,800 mg/day widely studied
Meilleur moment: Between meals on empty stomach for optimal absorption

Synthèse des preuves

Acute Bronchitis B

Post-Viral Fatigue C

Avertissement FDA: Ces déclarations n'ont pas été évaluées par la Food and Drug Administration. Les produits et informations sur ce site ne sont pas destinés à diagnostiquer, traiter, guérir ou prévenir quelque maladie que ce soit. Les notes de preuve présentées sont basées sur notre analyse de la recherche publiée et évaluée par des pairs et ne constituent pas un avis médical. Consultez toujours votre professionnel de santé avant de commencer tout régime de compléments alimentaires.