Eating metformin blood sugar is still high can be controlled by diet control, appropriate exercise and medication and other ways to control blood sugar. 1. Dietary control and appropriate exercise: If you only rely on oral hypoglycemic drugs without dietary control and exercise, it is generally difficult to control blood glucose; you should maintain a low-salt, low-fat, low-sugar diet in your daily life, and avoid eating fried food, chocolate, cookies and other foods; you can do 150 minutes of aerobic exercise every week, such as swimming, jogging and other physical exercise. 2. Medication: If your blood sugar is still high after taking metformin, you can increase the dosage of metformin or combine with other oral hypoglycemic drugs, such as acarbose, under the guidance of your doctor, and you can also consider insulin injection. If your blood sugar is still high even after taking Metformin, you are advised to go to the hospital if you cannot control your blood sugar well even after diet and exercise.