Trapper, I don't know if you caught this a couple of months ago when news stories surfaced about an Arabic woman, Mariam Amash, who may be the world's oldest woman (120 years if her paperwork is accurate).
A couple of the pieces, this is one of them, mentioned that she takes olive oil daily.
"A granddaughter-in-law, Hamda Amash, 40, said Mariam is a 'healthy, active woman. She walks each day and makes sure she drinks at least one glass of olive oil.'"