Vorderman, who has hosted the Saturday morning show for four years, has been a vocal critic of the government on social media platforms like Twitter.
Her departure from the BBC Radio Wales show comes in the wake of the BBC's introduction of new social media rules for its stars and staff. These guidelines include stricter impartiality rules for hosts of selected "flagship programmes" and a requirement for all BBC staff and freelancers to respect civility in public discourse and not bring the BBC into disrepute.
While Vorderman's Radio Wales show was not on the "flagship" list, her social media posts were found to be in violation of the guidelines, primarily related to civility rather than impartiality.
In a statement, Vorderman explained that she was not willing to lose her voice on social media, change who she is, or stop expressing her strong political beliefs. She expressed her decision to continue criticizing the current UK government for its actions, despite the consequences of breaching the new guidelines.
Carol Vorderman is widely known for her role as the mathematics expert on the TV game show Countdown and has hosted various other television programs over the years.