April 16, 2026
Last Updated: April 2026
A lot of athletes think CBD is just automatically "fine" under anti-doping rules. The reality is more complicated — and the misunderstanding is costing people their careers. CBD itself is not prohibited by WADA. That's the simple part. Everything else about cannabinoids and anti-doping compliance requires more care than most athletes are applying.
WADA's current in-competition THC threshold is 150 nanograms per milliliter (ng/mL) in urine. This threshold has been in place since 2013, when WADA raised it from the previous 15 ng/mL — a tenfold increase specifically intended to distinguish intentional in-competition THC use from residual metabolites from prior use. The 2026 WADA Prohibited List made no changes to the cannabinoid rules. THC remains prohibited in-competition only, at the 150 ng/mL urinary threshold.
The 150 ng/mL threshold is relatively high. A casual user who consumed cannabis a week before competition is unlikely to test positive; a frequent user or someone who consumed cannabis close to competition may exceed it. However, "relatively high" is not the same as "safe." Athletes with high body fat percentage metabolize THC more slowly. And contaminated CBD products — which are far more common than most athletes realize — can contribute to THC accumulation even at low individual doses taken over time.
Cannabinoids are prohibited in-competition only. WADA defines "in-competition" as the period from 11:59 p.m. the day before a competition until the end of the competition and the sample collection process. Out-of-competition cannabis use is not prohibited — but THC metabolites can remain detectable in urine for days to weeks depending on use frequency and individual metabolism. An athlete who uses cannabis out-of-competition but tests positive at a competition still faces an anti-doping violation.
WADA removed CBD from its Prohibited List in 2019. CBD alone is permitted for athletes at all times — in-competition and out-of-competition. This has driven significant growth in CBD products marketed specifically to athletes.
CBD products are not a regulated pharmaceutical category in most countries. Multiple independent laboratory studies have found that a significant percentage of CBD products on the market contain detectable THC — often in amounts the label doesn't disclose. A 2020 study published in JAMA found that 26% of CBD products tested online were mislabeled, with 21% containing more THC than labeled. WADA's principle of strict liability means athletes are responsible for what is in their bodies, regardless of intent or what the label says. A CBD oil that contains undisclosed THC, taken daily for several weeks before competition, can accumulate enough THC metabolites to trigger a positive test. This has ended careers.
Delta-9 THC is the only cannabinoid for which WADA has set a urinary threshold (150 ng/mL). All other natural cannabinoids — including THCA, THCV, delta-8 THC, CBN, CBG, and others — are prohibited in-competition without a threshold. That means any detectable amount of these cannabinoids in an in-competition sample is an anti-doping rule violation. CBG and CBN — which appear in many "full spectrum" CBD products — are on the prohibited list for in-competition use.
Synthetic cannabinoid receptor agonists are prohibited at all times — in and out of competition — with zero tolerance. There is no threshold for synthetic cannabinoids.
The recognized third-party certification programs for athlete-safe supplements are: Informed Sport (tests every production batch for WADA-prohibited substances), NSF Certified for Sport (broad banned substance screening with GMP audits), and BSCG Certified CBD (specific to hemp and CBD; tests for 450+ substances including all WADA prohibited compounds). For CBD brands marketing to athletes, carrying one of these certifications is the minimum credible claim of anti-doping safety.
150 ng/mL in urine, measured in-competition. This threshold has been unchanged since 2013. Out-of-competition THC use is not prohibited but can produce in-competition positive tests due to metabolite persistence.
CBD itself is not prohibited. But many CBD products contain detectable THC — enough to cause a positive test with repeated use. Only use CBD products that are batch-certified by Informed Sport, NSF Certified for Sport, or BSCG Certified CBD.
No. WADA removed CBD from the Prohibited List in 2019. CBD is permitted at all times for all athletes.
Yes. THCA is a prohibited cannabinoid in-competition under WADA rules. Any detectable amount in an in-competition sample is a violation. THCA converts to THC in the body and would contribute to a positive THC metabolite reading.
Informed Sport, NSF Certified for Sport, or BSCG Certified CBD — all of which batch-test products against the WADA Prohibited List. Verify the specific lot number on your product is covered.
