A controversial episode of teen star Miley Cyrus' hit show Hannah Montana has been cancelled after Disney bosses were flooded with complaints from concerned parents.

The episode, titled No Sugar, Sugar, sees Cyrus' character Hannah dealing with her pal's diagnosis with diabetes.

The show was set to air in the U.S. on Sunday, but was yanked after it was previewed by parents in an on-demand version.

A spokesperson for the show tells the New York Daily News, "During the scriptwriting stage of the Hannah Montana episode in question, the matter of depicting a character with diabetes was reviewed by our Standards and Practices executives who consulted with medical experts to inform the story and ensure that it was told responsibly.

"Notwithstanding the measures we took, and based on the episode's preview and early feedback from parents (who saw it on Subscription Video on Demand and/or mobile platforms), we removed the episode from Sunday's schedule and are now reevaluating it."