Compound alpha-keto acid tablets can not directly treat urinary protein, but can play a supplementary therapeutic role. The ingredients of compound alpha-keto acid tablets are keto amino acid calcium, hydroxy amino acid calcium, amino acids and other protein metabolites, which can reduce the body’s need for protein from food to a certain extent, thus reducing the appearance of urinary protein. And urinary protein is usually due to chronic nephritis, nephrotic syndrome, IgA nephropathy and other renal pathologies, resulting in impaired glomerular filtration barrier or tubular reabsorption dysfunction, causing protein to enter the urine through the kidneys and be excreted from the body. And compound alpha-keto acid tablets can not repair the glomerular filtration barrier, as well as the reabsorption function of renal tubules, so it can not completely treat the disease, and can only play a supplementary therapeutic role. For patients with urinary protein, the intake of protein should be strictly limited to reduce the damage caused to the kidneys, and also actively carry out the treatment of the primary disease, and at the same time, can assist in the use of compound alpha-keto acid tablets, but need to pay attention to the intake of the drug, may occur after hypercalcemia, the drug should be timely detection of the calcium level during the period of use.