As a drug, it's used by healthcare providers to treat acetaminophen (Tylenol) poisoning. It works by binding the poisonous forms of acetaminophen that are formed in the liver. People commonly use...

N-acetyl cysteine (NAC) is the supplement form of the amino acid cysteine, which plays several important roles in human health. Here are the top 9 health benefits of NAC.

Apr 20, 2020 · NAC benefits have been shown to help with respiratory conditions, improve immune function and help in balancing hormones. Learn more.

Dec 10, 2025 · Supplemental NAC has been studied for treating psychiatric symptoms and managing autism. NAC helps replenish glutathione levels in the body, which may support healthy aging. The …

Apr 11, 2023 · N-acetylcysteine (NAC) is a supplement that may help with various conditions. Possible uses range from improving athletic performance to managing blood sugar levels and treating chronic …

Dec 24, 2025 · What is NAC? NAC is used to help prevent or lessen liver damage caused by taking large quantities of acetaminophen (Tylenol). There are other brands and forms of acetylcysteine …

Apr 9, 2025 · NAC (N-Acetyl Cysteine) is a modified amino acid that enhances antioxidant activity and detoxification, which supports liver, brain, immune, respiratory, and mental health. While generally …

Jan 12, 2026 · Learn what a NAC supplement is, how it supports glutathione production, antioxidant balance, liver health, and immune support.

6 days ago · Curious about NAC supplements? Learn what N-acetylcysteine does, who may benefit, and why a food-first, dietitian-guided approach matters for liver, metabolic, and antioxidant health.

Sep 4, 2025 · NAC is commonly taken as a supplement for health and wellness and is used in clinical settings to treat drug overdose, cystic fibrosis, and chronic obstructive pulmonary disease.