The present invention is an oral dosage composition for prevention and treatment of hepatic inflammation such as NASH. The present invention is an oral dosage composition for prevention or treatment of hepatic inflammation, contains the radical scavenging active spirulina powder effective in preventing, ameliorating, and curing NASH or the like.提供一種在非酒精性脂肪性肝炎(NASH)等肝炎的預防或治療上有用的經口攝取用組成物。其係一種使用於肝炎的預防或治療的經口攝取用組成物,含有螺旋藻粉來作為有效成分。其藉由經口攝取,主要是基於螺旋藻粉末的自由基清除活性,而使肝炎的預防、改善和治療成為可能。