"Jumbo Breakfast Roll" is a 2006 single by Irish comedian Pat Shortt, under the guise of Showband singer 'Dicksie Walsh'.
According to figures compiled by GfK Chart-Track Jumbo Breakfast Roll came in at number 11 on the list of top selling songs of the decade.
Pat Howe, music manager for HMV Ireland described it as a "guilty pleasure" and noted the Irish have a thing for novelty songs.
Determined to change the narrator's lifestyle, the doctor makes him walk 5 miles (about 8 km) every day, and visit a dietician named Noel.
Several years later, the narrator has lost 3 stone (19 kg or 42 pounds), has gotten a date with a vegetarian (and is going on her diet), has lower cholesterol and has a healthy heart.