Is NAC a banned substance?: An Explanation of Its Complex Legal Status
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4 min read
The U.S. Food and Drug Administration (FDA) announced in 2021 that N-acetylcysteine (NAC) was excluded from the definition of a dietary supplement under the FD&C Act. This announcement sparked confusion among consumers, raising the urgent question: **Is NAC a banned substance?** The answer is more complex than a simple 'yes' or 'no', involving a nuanced understanding of regulatory history and the FDA's current policy.
