"Emma has always eaten very few vegetables, very little fruit. When I met her, she ate three eggs per day, two raw in the morning and then an omelette at noon, and chicken at dinner," he said.
But meat has since disappeared from Morano's diet because, according to Bava, "she doesn't like it anymore and someone told her it causes cancer."
Despite turning 117, she says it's unlikely she'll have even a bite of her birthday cake.
"The last time I ate a little, but then I did not feel good," she recalled.
Marono has a few birthdays to go before she breaks the record for the oldest verified age: 122 years and 164 days, held by French woman Jeanne Calment who died in 1997.
She hasn't left her two-room apartment for the last 20 years, has outlived all her immediate family and isn't planning on a birthday party.
But she expects well-wishers will turn up anyway: "People come. I don't invite anybody but they come. From America, Switzerland, Austria, Turin, Milan ... They come from all over to see me."