Williams is a medical cannabis advocate. He once stated his "personal goal is to elevate the legitimacy of cannabis as a medicine and the respect of medical professionals for cannabis users.

Williams has admitted being very shy and was diagnosed with social anxiety disorder, borderline
personality disorder, and avoidant personality disorder with which he struggled to cope during his
football career. Williams was treated with therapy and medication. Williams was briefly
a spokesperson for the drug Paxil as treatment. He worked with the drug company GlaxoSmithKline
to educate the public about the disorder. Williams later quit using Paxil and said that cannabis
was a much better form of treatment.

Highsman is the official cannabis lifestyle brand of one of the most electric NFL running backs of the century, Ricky Williams.