Despite a warning from the PGA Tour about the usage of cannabidiol (CBD), two-time Masters winner Bubba Watson sees it as a means to continue his career at a high level after recently turning 40.

"I see Phil Mickelson winning at 48, so I've got at least eight more years of having a shot of winning some tournaments," Watson told CNN's Don Riddell. "So for me it was about how I create longevity in the game of golf and spending time with my kids running around. CBD was easily a fit for me."

Derived from marijuana plants, CBD does contain any tetrahydrocannabinol (THC), the psychoactive constituent in marijuana that produces a high, and has increasingly been marketed as a pain-reliever. Even with the World Anti-Doping Agency (WADA) removing it from its list of banned substances in 2018, the PGA issued a formal statement about potential contamination within CBD products.

"As with all supplements, the PGA Tour warns players who inquire about CBD products that there is no guarantee a supplement contains what is listed on the label, therefore there is a risk that a supplement may contain a prohibited substance," the statement read.

Still, Watson remains undeterred.

"I've had doctors involved to do my research and see what companies out there make a product that's safe for me and safe for my family," Watson said. "It was a no brainer. There's no bad stuff in it, there are no chemicals in there that will mess you up or make you fail a drugs test. There are certain companies we trust."

Watson is not a participant in this weekend's Wells Fargo Championship in Charlotte.