Table 1: Studies included in meta-analysis*

Reference		Sample size		Diagnostic method		Intervention		Duration (months)
Vajro et al13		20		Histological		Lactobacillus rhamnosus strain GG in pediatric obesity-related liver disease		2
Aller et al14		30		Histological		Lactobacillus bulgaricus and Streptococcus thermophilus vs placebo		3
Malaguarnera et al15		66		Histological		Bifidobacterium longum + Fos vs placebo		6
Wong et al16		20		Histological		Lepicol probiotic and prebiotic formula vs nothing		6
Shavakhi et al17		64		Histological/radiological		Probiotic and metformin on liver aminotransferases in NASH		6
Alisi et al18		44		Histological		The beneficial effects of VSL#3 in obese children with NASH		4
Eslamparast et al19		52		Histological		Symbiotic supplementation in NAFLD		7

*All studies were double-blind and had follow-ups