Portland, Oregon – The Oregon Health Authority (OHA) announced Thursday that it has released updated public‑health statements on cannabis. The 2026 Cannabis Public Health Statements provide clinicians, local health agencies, lawmakers and residents with the most recent scientific evidence about the health effects of cannabis use.
Why the update matters
Since the original statements were created by a Retail Marijuana Scientific Advisory Committee in 2015 and updated in 2017, the landscape of cannabis products and research has shifted dramatically. Measure 91, passed in 2014, legalized recreational cannabis in Oregon, prompting the need for clearer guidance as new products—such as high‑THC concentrates, edibles and vaporized forms—have entered the market.
“We set out to capture as much recent data and evidence as possible, from hundreds of studies and reports, to provide a comprehensive picture of the potential health harms and health benefits of cannabis use,” said Dr. Tom Jeanne, deputy state health officer and epidemiologist for OHA.
Key findings
The statements summarize moderate or strong evidence linking cannabis use to several health harms, including respiratory issues from smoked forms, impaired driving risk, and potential mental‑health effects. They also note moderate or strong evidence of certain benefits, such as relief of chronic pain and reduction of seizure frequency in specific epilepsy syndromes.
Importantly, the guidance stresses that associations reported in the literature do not prove causation. The OHA advises readers to interpret findings cautiously, especially given variations in product potency, THC and CBD content, and the presence of additives.
Limitations and next steps
The OHA acknowledges that its review was conducted by a small team with limited resources, and therefore does not match the depth of large‑scale reviews by the Cochrane Collaboration or the National Academies of Sciences, Engineering, and Medicine. The agency notes that some statements are marked as having “insufficient evidence” because they were included in prior major reviews but lack new data.
“Although we aimed to conduct a comprehensive review, these findings should not be taken to be exhaustive and representative of the entire body of cannabis health effects research, which is constantly expanding,” the authors wrote.
Practical guidance
The summary offers practical advice for individuals considering cannabis use, emphasizing the importance of consulting health‑care professionals. It also provides recommendations for clinicians on how to discuss cannabis with patients, taking into account product type, dosage and individual health conditions.
OHA’s release underscores the agency’s commitment to evidence‑based public‑health communication, helping Oregonians make informed decisions in a market that continues to evolve.
Original reporting: KTVZ (Central Oregon) — read the source article.
