NAC is effective for treating mental health disorders
6.0Moderate
evidence
evidence
The Claim
Some advocates claim that NAC can significantly alleviate symptoms of mental health disorders, including depression and anxiety, by regulating glutamate levels.
Origin
This misconception stems from early studies and the role of glutamate in brain chemistry, which some have extrapolated to broad mental health improvements.
What Science Says
Research, including meta-analyses and systematic reviews, indicates that NAC may have some benefit in specific mental health conditions such as bipolar disorder and schizophrenia, but results are variable and not conclusive for depression or anxiety. The effect size is often small, and more research is needed to fully understand its role.
Verdict
Partially True
Sources
- PMID:35311615 Clinician guidelines for the treatment of psychiatric disorders with nutraceuticals and phytoceuticals: The World Federation of Societies of Biological Psychiatry (WFSBP) and Canadian Network for Mood and Anxiety Treatments (CANMAT) Taskforce.
- PMID:34582562 Pharmacotherapy for trichotillomania.
- PMID:29457216 N-acetylcysteine for major mental disorders: a systematic review and meta-analysis of randomized controlled trials.