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New Study Finds Cannabis Does Not Lower Testosterone in Young Men

For years, opponents of cannabis reform have claimed that cannabis use lowers testosterone and harms male fertility. However, new research from Switzerland is challenging some of those assumptions.


Researchers from the University of Geneva (UNIGE) and the Swiss Centre for Applied Human Toxicology analysed blood samples from 94 Swiss conscripts aged between 18 and 23 years old, including both cannabis users and non-users.


The study found that young men who used cannabis had, on average, around 23% higher testosterone levels compared to non-users.


According to Professor Serge Rudaz, who led the research team, the increase appears to originate directly from the testes, where testosterone is produced, rather than from other hormone-producing glands in the body.


The researchers also identified two potential new hormonal biomarkers that may help scientists better understand the effects of regular cannabis exposure on the endocrine system.


What Does This Mean?


Importantly, the researchers caution against assuming that higher testosterone automatically means improved fertility.


While testosterone levels were found to be higher among cannabis users, the study did not establish a direct link between cannabis use and sperm quality or fertility outcomes.


Researchers noted that the relationship between testosterone, fertility, and cannabis use remains complex and requires further investigation.


They also suggested that men with naturally higher testosterone levels may be more likely to engage in risk-taking behaviours, including cannabis use, meaning cause and effect are not yet fully understood.


Cannabis Club Australia View


For decades, cannabis users have been subjected to claims that cannabis inevitably lowers testosterone and damages male reproductive health.


This latest research suggests the science is far more nuanced than many people have been led to believe.


While further studies are needed, the findings challenge one of the most commonly repeated claims about cannabis and male hormones.


As cannabis laws continue to evolve around the world, it is important that public policy, education, and patient access are guided by evidence rather than outdated assumptions or stigma.


Cannabis Club Australia supports continued independent research into both the benefits and risks of cannabis so that Australians can make informed decisions based on facts.


Source

University of Geneva (UNIGE) – Faculty of Science


 
 
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