Cannabis does not improve mental health

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Adapted from BMJ 18-25 April 2026

A study published in Psychiatry indicates that cannabinoids don’t do much, if anything, for mental health improvement.

A systemic review of 54 clinical trials involving over 2,500 participants, showed no consistent benefit for anxiety, depression, or post traumatic stress disorder.

Limited evidence of benefit was seen in insomnia, Tourette’s syndrome and autistic spectrum disorder, but the study quality was low.

My comment: As a doctor I was aware that some patients got a benefit from cannabis/cannabinoids for chronic pain and multiple sclerosis. I’m also aware that some dogs are being given cannabinoids for various complaints and also been told that sometimes it makes a big difference.

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