All fruits contain carbohydrates and people diagnosed with diabetes may have tighter controls around consumption and portion sizes to prevent blood sugar elevations. Blood sugar responses to different foods vary for everyone and are affected by factors such as medications for diabetes, composition of the meal, time of day, and activity. The fiber in whole fruit may help slow the response to the natural sugar that is in the fruit, but can be very individual. I recommend you follow-up with your doctor and ask if this explanation is applicable to your situation. Also ask about consulting with a diabetes educator or a registered dietitian nutritionist for a specific meal plan to determine how much carbohydrate you need.