By Helen Pidd
Depending on who you ask, the Metro's London restaurant critic Marina O'Loughlin is on the tall side, extremely short, with bleached blonde, rather dark, cropped, long hair.
She is single and childless, with two daughters and a husband, who may or may not be Palestinian. She is in her mid-40s, young, Scottish and Italian.
Only one thing is certain: with a readership of well over a million, O'Loughlin is an influential food writer and the fact that she can walk incognito through the door of any establishment is driving the capital's restaurateurs crazy.