Eating lots of fruit and vegetables with white flesh may help to protect against strokes, says a study in the journal Stroke.
But Dutch researchers say they do not know why people with a high intake of apples, pears, bananas and cauliflower reduce their risk of stroke by 52%.
The study followed more than 20,000 adults over 10 years.
Stroke experts said people should not be put off eating other coloured fruit and vegetables
- BBC Ceefax 16/9/2011

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They don't know why? All the things listed are high in potassium which would help to counterbalance sodium levels. Increased sodium levels are linked to higher stroke risk. That might explain it.

Postscript: Your appendix can become inflamed when fruit pips get wedged inside it. Avoid swallowing these to minimize the risk - Dr Caroline Shreeve ('Home Doctor')