Does drinking fruit juice increase the risk of diabetes?

A study  suggested that drinking three portions of fruit juice a week was associated with an eight per cent increase in diabetes risk. 

Conversely, eating blueberries, grapes, apples and pears reduces the risk. The researchers found that replacing fruit juices with three helpings of certain whole fruits a week would lower the risk by seven per cent.
Some whole fruits reduced the risk more than others. For grapefruits and bananas, there was a five per cent decrease, whereas blueberries reduced the risk by 26 per cent.