The danger of drinking white wine after taking insulin is that it may cause hypoglycemia. Insulin is usually able to play the purpose of lowering blood sugar, can be used for the treatment of diabetes; and drink white wine, alcohol will enter the blood, inhibit the breakdown of liver glycogen into glucose, may cause hypoglycemia; and, excessive drinking may also inhibit the central nervous system, masking the symptoms of hypoglycemia, such a situation is very serious. In addition, drinking white wine is also not conducive to diabetic patients’ blood sugar control, so diabetic patients should avoid drinking alcohol in daily life and maintain a low-salt, low-fat and low-sugar diet. Patients who have been diagnosed with diabetes should cooperate with their doctors and maintain a healthy lifestyle.