Grapes are not recommended for diabetics. Grapes belong to the category of fruits with high sugar content and high glycemic index and are not recommended for diabetic patients. Grapes are fruits with medium to high glycemic index, which may cause fluctuation of blood glucose after consumption. Eating grapes regularly may cause the patient’s blood glucose to remain at a consistently high level, which is not conducive to the control of blood glucose. As a result, it may also aggravate the occurrence and development of diabetic complications. Whether diabetic patients can eat fruits needs to be viewed according to the severity of the patient’s condition and whether the patient’s blood sugar control is stable. However, for diabetic patients, it is recommended to choose fruits with low sugar content and to cut out the main food, which is recommended to be consumed between meals. Fruits with low sugar content include apples, pears, strawberries and dragon fruits. To summarize, diabetic patients need to strengthen their dietary management, go to the hospital for follow-up on time, cooperate with doctors for active treatment, and closely monitor changes in their conditions.