The Bankgog Post reports
More than 30% of random samples of cannabis-based beverages contain amounts of Tetrahydrocannabinol (THC), cannabis’ psychoactive ingredient, in excess of the legal limit, according to research from Chulalongkorn University.
Assoc Prof Kuakarun Krusong, a lecturer of biochemistry at the university’s faculty of science, conducted a study which found that about 30% of randomly chosen samples contained more than the 0.015 milligrammes per 100 millilitres of drink limit set by the Public Health Ministry.
So far, the authorities have not given any recommendation on how much of the substance can safely be consumed per day or what adverse effects of doing so may follow, she said, adding that long-term studies on the effect of cannabis consumption have yet to be completed.
“Vendors do not know the THC limit per serving. Even those that do cannot control the amount precisely. The process also varies from one vendor to another,” Assoc Prof Kuakarun said.