Morgan said, “Despite decades of marijuana being used for smoking in the United States, there have been no reported medical cases of lung cancer” attributed to marijuana.
The most comprehensive analysis about the health effects related to cannabis comes from a 2017 report by the National Academies of Sciences. The report found “moderate evidence of no statistical association between cannabis smoking and the incidence of lung cancer.”
However, the report also noted various limitations of the research. Overall, the academies called for more research — a sentiment shared by other experts we interviewed.
Morgan’s statement is partially accurate, but more evidence is needed before definitely declaring smoking marijuana is risk-free when it comes to lung cancer. We rate the statement Half True.
Read more >>> Source: Can marijuana smoking cause lung cancer? | PolitiFact Florida