Health Professionals Became the Top Cannabis Information Source as Traditional Media Declined

In a longitudinal study of 5,053 US adults surveyed at three time points, the use of health professionals as an information source for cannabis risks increased by 17.4%, making it the largest increase among all sources. Traditional media use declined by 11-12%. Cannabis industry sources (advertisements, dispensaries) also increased. Health professionals were consistently rated the most influential information source regardless of age, cannabis use status, or state legalization status.

Longitudinal study of 5,053 US adults surveyed via web in 2017, 2020, and 2021. Assessed use and perceived influence of multiple cannabis information sources (health professionals, internet, social media, traditional media, family/friends, industry sources). Examined interactions with age, cannabis use, and state legal status.

As people increasingly look to healthcare providers for cannabis guidance, providers need adequate training to offer evidence-based information. The simultaneous rise of industry-sourced information creates competing narratives that providers should be prepared to address.

The shift from passive media consumption to active provider consultation represents an opportunity for the healthcare system to shape public understanding of cannabis, but only if providers are equipped with current, balanced evidence.

Web-based survey may not represent all US adults. Three time points may miss shorter-term fluctuations. Self-reported source usage may not capture passive information exposure. Study period included COVID-19 pandemic, which may have affected information-seeking behavior.