Browse/Amino Acid Derivative
Amino Acid Derivative

NAC (N-Acetyl Cysteine)

01 / OVERVIEW

What this compound does

WHAT IT DOES

NAC is a supplement that helps your body produce a powerful antioxidant that protects your cells from damage. It also supports your lungs by helping to clear out mucus, making it easier to breathe. Some people take it to improve their overall health and support their immune system.

KEY BENEFITS
Supports respiratory health
Promotes antioxidant levels
Helps with mental clarity
May improve mood
Aids in detoxification
BEST FOR
  • • Individuals with respiratory issues
  • • People looking to boost their antioxidant levels
  • • Those seeking support for mental clarity
  • • Adults experiencing mood fluctuations
WHAT TO EXPECT

Users may start to notice benefits within a few days to weeks, particularly in respiratory function and overall well-being. Effects can vary based on individual health status.

WHO SHOULD AVOID THIS
  • • Pregnant or breastfeeding women
  • • Individuals with a history of asthma
  • • People with certain kidney conditions
MYTHS & FACTS
Myth: NAC is just a simple antioxidant.
Fact: While NAC does have antioxidant properties, its primary role is as a precursor to glutathione, which is crucial for various bodily functions beyond just antioxidant defense.
Myth: NAC is only for lung health.
Fact: NAC supports multiple health aspects, including mental clarity and mood, not just respiratory function.
At a glance
Typical dose
600-1800 mg/day in divided doses
Evidence
—
Studies indexed2
How it's made

Production details below.

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03 / DOSAGE

How much, when

MAINTENANCE

600-1800 mg/day in divided doses

split morning and evening

TIMING

NAC (N-Acetyl Cysteine) — Morning dose

Take on empty stomach

02 / EVIDENCE

Peer-reviewed studies

  • PMID: 25117882

    Glutathione replenishment

    NAC provides cysteine, the rate-limiting precursor to glutathione synthesis.

    A
  • PMID: 10594905

    Liver and toxin support

    Gold-standard treatment for acetaminophen overdose; studied for non-alcoholic fatty liver.

    A
  • PMID 18681988 · 2008Review

    N-Acetyl Cysteine as Antioxidant and Glutathione Precursor

    NAC effectively replenishes intracellular glutathione and scavenges free radicals.

    A
  • PMID 29067523 · 2017Systematic Review

    NAC for Psychiatric and Neurological Disorders: Systematic Review

    Promising evidence for NAC as adjunctive therapy in depression, OCD, and addiction.

    B
  • PMID 25084991 · 2014 · n=1682Meta-Analysis

    NAC and Respiratory Health: Clinical Evidence

    NAC reduced exacerbation frequency in COPD patients.

    A
04 / INTERACTIONS

Medicine interactions

  • Nitroglycerin· vasodilator

    NAC may enhance the effects of nitroglycerin, leading to increased risk of hypotension.

    → Monitor blood pressure closely if used together.

    HIGH

  • Antidepressants (SSRIs)· SSRI

    NAC may influence serotonin levels, potentially affecting the efficacy of SSRIs.

    → Consult a healthcare provider before combining.

    MODERATE

  • Blood thinners· blood_thinner

    NAC may have mild anticoagulant effects, increasing bleeding risk.

    → Use with caution and under medical supervision.

    MODERATE

This page is a reference summary, not a prescription. Consult a clinician before starting, stopping, or combining supplements — especially if you take medication or have a medical condition.