Relax, all of you. Nate Diaz did not commit an anti-doping violation even though he smoked a marijuana cigarette at the Honda Center in Anaheim, California, during his open workout on Wednesday.
Diaz, who faces Anthony Pettis in UFC 241’s co-main event on Saturday, informed journalists the joint was CBD, which is always legal. But marijuana cannabinoids are only prohibited in competition.
What is essential here is the definition of in-competition. According to the regulations of the World Anti-Doping Agency, acknowledged by both the California State Athletic Commission and the United States Anti-Doping Agency, cannabis in-competition is 12 hours before the event until all tests have been completed after the event.
So he wouldn’t face a violation even if Diaz’s joint was weed.
His only issue in that event would be the amount of concentration in his system. California utilizes the limit of a natural or synthetic cannabinoid such as THC of 150 nanograms per milliliter (150 ng / ml).
Source: Yahoo Sports