Evidence suggests additive in cannabis THC e-cigarette products affected breathing
The outbreak of vaping-related illness in the US was probably caused by people using THC from cannabis cut with vitamin E acetate in their e-cigarettes, experts have said.
A paper in the New England Journal of Medicine shows that 94% of fluid samples from the lungs of 51 people in 16 states who developed breathing problems after using e-cigarettes contained vitamin E acetate. There was none in samples from people who used e-cigarettes without THC, the component of cannabis that gives the user a “high”.