Problem to be solved: to provide a composition for improving renal function deterioration caused by kidney disease such as chronic nephritis.Improvement of kidney disease in human patients with acute or chronic nephritis, renal failure, and / or nephrotic syndrome, including, for example, compositions to improve human kidney disease, including molecular hydrogen as an active ingredient, such as urinary protein and urinary protein / urinary creatinine ratio A composition for improving the normal range, and a method of administering the composition to said patient to improve kidney disease.No selection【課題】慢性腎炎などの腎臓疾患に起因した腎機能低下を改善するための組成物を提供する。【解決手段】分子状水素を有効成分として含む、ヒトの腎臓疾患を改善するための組成物、例えば急性もしくは慢性の腎炎、腎不全、および/またはネフローゼ症候群をもつヒト患者において腎臓疾患を改善する、例えば尿蛋白及び尿蛋白/尿クレアチニン比を正常範囲に改善するための組成物、並びにこの組成物を前記患者に投与し腎臓疾患を改善する方法。【選択図】なし