Another study, where children with fatty liver detected by liver ultrasound were randomly assigned to receive a vitamin D supplement (50,000 U/week), found an improvement in the degree of fatty liver by ultrasonography and an increase in blood vitamin D levels, in addition to a significant increase in HDL and a significant decrease in LDL, insulin, HOMA-IR, and ALT [67]. Here, GPT is linked to Hepatic steatosis.