The oldest person in the world credits being single and eating this one food every day to her long life.
Emma Morano, from Italy, celebrated her 117th birthday on Tuesday and is now the only person alive who was born in the 1800s.
Morano says the secret to her long life is ending her abusive marriage and eating two raw eggs a day.
When she was a teenager, a doctor suggested that Morano eat raw eggs to combat her anemia, reports CNN, and since then she ate two raw eggs, one cooked egg, some minced meat and pasta every day for 90 years.
Now she just eats two eggs and some cookies (ladyfingers, in particular) each day, due to her age.
Morano's doctor, Carlo Bava, said she is "in a great state of health and mind."
"The fact that she has never had much variety in her diet is proof that she is so well-preserved thanks to genetics."
Morano divorced her husband in 1938, decades before divorce was legal in Italy, after losing her one true love in World War One.
It is reported that she didn't intend to marry anyone else, but was "forced" to do so.
"He said, 'If you're lucky, you marry me, or I'll kill you,'" she told Italian media outlet La Stampa.
She then divorced her husband a year after her six-month-old child died.
"I didn't want to be dominated by anyone," she told the New York Times.
A long life appears to be in Morano's genes, with her mother living to 91 and some of her sisters living to a century.
She became the world's oldest living person in May after Susannah Mushatt Jones, from America, died at 116-years-old.