Can athletes use CBD, and will it cause a failed doping test?

What does the WADA list say?

CBD has not been a prohibited substance since 2018. Under the 2026 list, all natural and synthetic cannabinoids (cannabis compounds) other than CBD are banned in competition. In the list that takes effect on January 1, 2027, the ban was rewritten to cover THCs and the semi-synthetic and synthetic substances that mimic THC’s effects. The examples include Δ8-THC, Δ10-THC and HHC, and the list explicitly states that 'CBD is not prohibited.'

What is the limit for THC?

Labs measure carboxy-THC, the breakdown product of THC, in urine. WADA’s threshold is 150 ng/mL and its decision limit is 180 ng/mL; for very concentrated urine, this limit is adjusted upward. This limit is higher than in workplace testing, but it’s no guarantee, because you often can’t know how much THC is in a CBD product.

The hidden risk is in the product

WADA warns that CBD extracted from plants may contain varying amounts of THC. In a study by a doping control lab in Germany with 15 commercial CBD products, various cannabis compounds were found in urine, especially after full-spectrum products. About one fifth of CBD products bought online contained THC.

Broad-spectrum products and exercise

THC didn’t show up in the urine of volunteers who took 150 mg a day of a broad-spectrum CBD product for 10 weeks. But CBG and CBDV, which are banned under the 2026 list, were found, and the rate rose after exercise (for CBDV, from 68% to 84%). CBDV wasn’t listed on the product’s certificate of analysis.

Practical notes for athletes

The Prohibited List is updated every year; keep up with the current list and with warnings from your national anti-doping organization. Because even products labeled 'pure' can turn out to contain something different, no CBD product offers zero risk on a test. If you’re considering CBD for a health problem, talk to your team doctor or sports medicine doctor.

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