An analysis reveals that using LSD, magic mushrooms, or peyote doesn't increase chances of a person to develop mental health problems.
The information comes from more than 130,000 randomly chosen people, including 22,000 people who had used psychedelics at least once.
Researcher Teri Krebs and clinical psychologist Pal-Orjan Johansen, from the Norwegian University of Science and Technology's (NTNU) Department of Neuroscience, used data from a US national health survey to see what association there was, if any, between psychedelic drug use and mental health problems.
The authors found no link between the use of psychedelic drugs and a range of mental health problems. Instead they found some significant associations between the use of psychedelic drugs and fewer mental health problems.
The researchers relied on data from the 2001-2004 National Survey on Drug Use and Health, in which participants were asked about mental health treatment and symptoms of a variety of mental health conditions over the past year.
The specific symptoms examined were general psychological distress, anxiety disorders, mood disorders, and psychosis.
Armed with this information, Krebs and Johansen were able to examine if there were any associations between psychedelic use and general or specific mental health problems. They found none.
Johansen said that after adjusting for other risk factors, lifetime use of LSD, psilocybin, mescaline or peyote, or past year use of LSD was not associated with a higher rate of mental health problems or receiving mental health treatment.
The researchers found that lifetime use of psilocybin or mescaline and past year use of LSD were associated with lower rates of serious psychological distress.
Lifetime use of LSD was also significantly associated with a lower rate of outpatient mental health treatment and psychiatric medicine prescription.
The results have been published online in the journal PLOS ONE.