"It is often difficult for researchers to gain access to the quantity, quality, and type of cannabis product necessary to address specific research questions on the health effects of cannabis use"
Being unable to research the effects of specific strains and how cannabis is administered beyond oral or combustible methods limits our understanding of the true net effect in reality. Different methods for vaporizing and strains with low THC - high CBD would likely show very little evidence for negative effects on the user. However, consistent tobacco rolled cannabis cigars for a recreational user may show loads of evidence for negative effects on health. Like eating unhealthy vs eating healthy. Not all food is created equal, just like cannabis and its methods of use.
Being unable to research the effects of specific strains and how cannabis is administered beyond oral or combustible methods limits our understanding of the true net effect in reality. Different methods for vaporizing and strains with low THC - high CBD would likely show very little evidence for negative effects on the user. However, consistent tobacco rolled cannabis cigars for a recreational user may show loads of evidence for negative effects on health. Like eating unhealthy vs eating healthy. Not all food is created equal, just like cannabis and its methods of use.