Lard residue can not treat diabetes, but may aggravate the condition, diabetics should eat less or do not eat. Lard residue is the residue left when boiling lard, belongs to the high fat food, diabetic patients should reduce consumption or not eat. Diabetic patients should take oral hypoglycemic drugs under the guidance of a doctor to control blood sugar, such as metformin, acarbose, etc., or insulin injection. Diet, need to pay attention to less oil, less sugar, less salt, eat less and more meals. In daily life, diabetic patients can do appropriate exercise according to their physical condition, such as slow walking, dancing, running and so on. It is recommended that diabetic patients consult a doctor in time to receive regular treatment, do not trust the prescription.