CBD oil has been legal in the UK since 2018 – but only if it contains no more than 0.2% of THC.
That is because the legal substance can cause lightheadedness, dizziness, fatigue and even hallucinations.
Research by Zero Deposit Car Leasing found that CBD oil could put “illegal levels of THC in a driver’s bloodstream”.
The Centre for Medical Cannabis blind-tested 30 products advertising themselves as CBD from the high street and online.
THC is the chemical in cannabis which can make you “high”.
That means if you were pulled over by the police you could be arrested, and potentially lose your licence.
It was also found that the side effects of the oil could “impair drivers’ abilities when out on the road”.
“We think all drivers should take the impact of CBD seriously and think twice before taking it getting behind the wheel.”
The recent studies have found CBD oil can have “measurable levels of THC”.
Cannabis plants are made up of more than 100 different cannabinoids, which have different impacts on the body and are concentrated to different extents in certain parts of the plant.
The most well-known of these are THC and CBD.
The Home Office says that it can contain a maximum THC content of 0.2% and that the THC must not be easily separated from it.