Evaluation of the Effects of Diacylglycerol Edible Oil on Early Intervention in Diabetic Nephropathy and the Prevention and Treatment of Other Complications

INTERVENTION: Diacylglycerol Oil Intervention Group:Replace the oil from the stir‐fry with the product provided ‐ 80% diglyceride cooking oil;Control group:Replace edible oil with a placebo product; CONDITION: Diabetic Nephropathy PRIMARY OUTCOME: Urine Microalbumin/Creatinine Ratio;Urinalysis;Serum Creatinine (Cr);Blood Urea Nitrogen ;Serum Uric Acid;Estimated Glomerular Filtration Rate (eGFR);Urine ß2‐Microglobulin;24‐Hour Urine Biochemistry;Urinary Microalbumin Excretion Rate (24‐hour urine); SECONDARY OUTCOME: Blood Pressure;Blood Lipids;Glycated Hemoglobin (HbA1c);Fasting Plasma Glucose (FPG);Fasting Insulin; INCLUSION CRITERIA: 1.Patients diagnosed with type 2 diabetes according to the 1999 WHO criteria; 2.Diagnosed as stage three diabetic nephropathy using the Mogensen classification; 3.Patients who have been ruled out for kidney damage caused by other reasons; 4.Patients have stably taken medication for at least one month prior to the intervention period and will not adjust medication during the three‐month intervention period, with SGOT2 already used for three months; 5. Patients have been using ACEI/ARB for at least one month.