What is N-acetylcysteine (NAC)?

N-acetylcysteine (NAC) is a thought of as a “natural” substance but this is only partially true. One of the amino acids present in food is cysteine. NAC is an artificially modified form of cysteine. NAC is available as a medication by prescription and as a so-called “nutraceutical,” it is available over-the-counter without a prescription. The…