If you have diabetes, you should try to limit your servings of fruit to those with the lowest glycemic index and no more than five servings per day. GI values are obtained by monitoring a person’s blood sugar after eating the food. The value can vary slightly from person to person and from one variety of food to another. The following table lists fruits that are rated as low (under 20), medium (20-60), or high (over 60) in their values, according to the Glycemic Index database. Do be careful, though, since bananas are near the top of the medium GI listing (58), which is almost as high as mangoes (60).

Low Glycemic Index Fruit (under 20) High Glycemic Index Fruit (over 60)
rhubarb watermelon (however, has a low glycemic load)
cantaloupe blueberries
Medium Glycemic Index Fruit (20-60) grapes
fresh apricots loganberries
blackberries mulberries
cranberries pineapple
guava prunes
lemons any dried fruit
oranges figs
peaches kumquats
raspberries mangoes
tangerines pears
apples pomegranates
bananas  
cherries  
grapefruit  
kiwis  
limes  
papayas  
plums  
strawberries  
tomatoes