N-Acetyl Cysteine (NAC) is a stable form of the amino acid cysteine, widely used in supplements for its role as a precursor to glutathione, one of the body’s most powerful antioxidants. It helps replenish intracellular levels of glutathione, especially under conditions of oxidative stress.
In sports and physical activity, NAC is valued for its potential to reduce muscle fatigue and support recovery by countering free radicals produced during intense exercise. It also plays a role in detoxification and may aid respiratory health, which is relevant for athletes with high oxygen demands.
NAC has also gained attention for its potential neuroprotective and immune-supportive effects, though its use in sports settings is mainly linked to its antioxidant and recovery-supporting properties.
Synonyms:
NAC, Acetylcysteine
Benefits:
- Supports antioxidant defenses by boosting glutathione
- May reduce exercise-induced oxidative stress
- Supports respiratory and immune health
- Aids in detoxification processes
- May contribute to quicker recovery after intense workouts
Sources:
Produced synthetically for supplementation; cysteine is naturally found in protein-rich foods such as poultry, eggs, and dairy.
Observations:
Commonly found in capsule or powder form. Typical dosages in supplements range from 600 mg to 1200 mg per day. High doses may cause gastrointestinal discomfort or interact with blood thinners and certain medications.
Areas of Study Related:
Exercise Physiology, Nutritional Biochemistry, Sports Nutrition, Pharmacology.