In July 2013, May decided to ban the stimulant khat, against the advice of the Advisory Council on the Misuse of Drugs (ACMD). The council reached the conclusion that there was "insufficient evidence" it caused health problems.^[67] Explaining the change in the classification May said: "The decision to bring khat under control is finely balanced and takes into account the expert scientific advice and these broader concerns", and pointed out that the product had already been banned in the majority of other EU member states, as well as most of the G8 countries including Canada and the US.^[68] A report on khat use by the ACMD published in January 2013 had noted the product had been associated with "acute psychotic episodes", "chronic liver disease" and family breakdown. However, it concluded that there is no risk of harm for most users, and recommended that khat remain uncontrolled due to lack of evidence for these associations.^[69]