The result was further proved by Aller et al. who reported that the application of Lactobacillus bulgaricus and Streptococcus thermophilus significantly reduced the blood levels of ALT, AST and γ-glutamyltransferase (γ-GT) in patients with NAFLD, indicating the improved liver function [59]. The gene discussed is GPT; the disease is metabolic dysfunction-associated steatotic liver disease.