Clinically there is no glomerular filtration rate decline what to eat to get better fast, glomerular filtration rate decline is common in acute glomerulonephritis, diabetic nephropathy, IgA nephropathy and other diseases, the patient can follow the doctor’s instructions to take amoxicillin, dagliflozin, merti mcglutamol ester and other drugs treatment. 1. Acute glomerulonephritis: This disease is mainly caused by streptococcal infection leading to impaired glomerular function, and when the condition is serious, it can lead to a decrease in glomerular filtration rate. Due to streptococcal infection, patients can take amoxicillin, ampicillin and other penicillin antibiotics as prescribed by the doctor for anti-infective treatment, and generally the glomerular filtration rate will gradually return to normal. 2. Diabetic nephropathy: This disease is caused by high blood glucose concentration in the patient’s body, resulting in increased pressure on the renal blood vessels, which can also lead to a decline in glomerular filtration rate. Patients can take glucose-lowering drugs such as dagliflozin and metformin under doctor’s guidance to control blood sugar and slow down the development of the disease, and the glomerular filtration rate will not return to normal in general. 3. IgA Nephropathy: The specific cause of this disease is still unclear, clinical considerations related to genetic factors, patients’ own immune regulation function abnormalities and other factors, often affect the patient’s glomerular function, resulting in a decrease in glomerular filtration rate, proteinuria occurs. Patients can take captopril, merti-mescaline and other drugs as prescribed by the doctor. It is recommended that patients with decreased glomerular filtration rate should consult a regular hospital for further examination under the guidance of a physician to identify the specific cause of the disease and take appropriate treatment measures according to the actual cause.