Mayonnaise, originating on the Mediterranean island of Minorca, appeared in Japan close to 80 years ago. Made largely of eggs and oil, the dressing has long since found its own place in the Japanese diet. Its consumption has continued to rise, and there has recently been a marked increase, particularly among young people, in the number of fanatics who cannot help adding mayonnaise to everything they eat, including cooked-and-complete dishes. They are called mayora.