Olive oil can help prevent strokes in people over 65, a study suggests.
Researchers followed around 7,000 people aged 65 and over living in three French cities, for at least five years. They found those who used a lot of olive oil in cooking or as a dressing or dip had a lower risk of stroke than those who never used it.
The researchers say older people should be given new dietary advice regarding olive oil, based on the findings, which are published in the journal Neurology.
Lead author, Dr Cecilia Samieri, of the University of Bordeaux, said: "Our research suggests that a new set of dietary recommendations should be issued to prevent stroke in people 65 and older. Stroke is so common in older people, and olive oil would be an inexpensive and easy way to help prevent it."