Myth-buster

N-Acetylcysteine failed to cut alcohol cravings in a systematic review of 566 patients — the result was statistically indistinguishable from placebo.

This is one of the first systematic reviews on NAC for alcohol craving, and its null result challenges the popular notion that NAC is a reliable anti-craving supplement — but the picture is far from settled, since the same analysis hinted at a possible effect on PTSD symptoms that deserves further study.

Researchers pooled data from placebo-controlled trials totaling 566 people with alcohol use disorder and found that NAC did not reduce craving significantly more than placebo. The statistical analysis showed a wide range of individual study results, meaning the evidence is inconsistent and the overall effect is essentially zero.

Where this fits in the evidence

This is among the first studies we've indexed on N-Acetyl Cysteine for Reduced Alcohol Craving — treat it as an early signal until more research accumulates.

The study

N-acetylcysteine for patients with alcohol use disorder, post-traumatic stress disorder, and their co-occurrence: a systematic review of placebo-controlled randomized trials.

Systematic Review
n = 566
2026-05-11
BMC psychiatry

More on N-Acetyl Cysteine More on Reduced Alcohol Craving

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