According to one study by Dutch researchers, the dietary fiber and the flavonoids in fruits and vegetables with white flesh like apples, pears, bananas, cauliflower, and cucumbers may play a role.
For every 25-gram increase in the amount of white fruit eaten each day, the risk of stroke went down by 9%.
A typical apple is 120 grams.
However, researchers still recommend eating a rainbow of fruits and vegetables.