GPT and Hepatic steatosis: El-Lakkany et al., 2016 [42] showed that beyond improving serum lipid levels, NAC taken with a diet at 150 mg/kg for 8 weeks could improve the biochemical and histological parameters related to hepatic steatosis such as lobular inflammation and fibrosis, while enhancing liver function enzymes such as serum alanine amino transferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), and gamma glutamyl transferase in HFD-induced rats.