While Crunky is an iconic mainstay in the chocolate aisles, it’s now breaking free to appear in another section of the store because, as these images show, the chocolate has now become a chewing gum.

A chewing gum which the makers say can help enhance the size, shape and tone of the breasts has proved to be a big hit in Japan. B2Up says its Bust-Up gum, when chewed three or four times a day, can ...