GPT and obesity due to melanocortin 4 receptor deficiency: In another study by Famouri et al. [76] children with obesity and NAFLD that were treated with a daily mixture of four probiotics (Lactobacillus acidophilus, Lactobacillus rhamnosus, Bifidobacterium lactis, and Bifidobacterium bifidum), were more likely to decrease ALT levels and normalize ultrasound findings compared to the placebo group.