GPT and metabolic dysfunction-associated steatotic liver disease: In children, another double-blind RCT study also showed that obese patients with NAFLD (mean age 10.7 years), treated with Lactobacillus GG (12 billion CFU/day for 8 weeks), irrespective of changes in BMI z score and visceral fat, reached a significant decrease (up to normalization in 80% of cases) in alanine aminotransferase and in antipeptidoglycan-polysaccharide antibodies (a SIBO marker).