Strawberry

The glycemic index of a strawberry is 25.

An excerpt from the article 17 facts about Strawberry
Research suggests that a diet rich in plenty of low-glycemic index foods may benefit weight control and reduce the incidence of obesity-related diseases. Strawberries are also low in calories but sweet in taste, thus, they can be consumed as a sweet snack. They are recommended in the diet of people diagnosed with diabetes.