Impact of Soymilk on Liver Disease Severity of Children With Non-alcoholic Fatty Liver Disease (NAFLD)

A randomized, controlled study of standard soy milk consumption compared to 2% fat cow's milk consumption in children with Non-alcoholic Fatty Liver Disease (NAFLD). The investigators hypothesize that the daily consumption of soy isoflavones found in the soy milk will be beneficial in reducing NAFLD and other obesity-related comorbidities. The investigators do not expect any adverse endocrine or metabolomic effects from the consumption of soy isoflavones.

Inclusion Criteria: * Children with overweight/obesity * Known NAFLD or elevated ALT (\>30) Exclusion Criteria: * Baseline habitual (\>3 days per week) consumption of soy foods * Allergy to soy or cow's milk protein * Inability to undergo MRI * Recent (past 8 weeks) antibiotic exposure * Treatment for existing endocrine disorders * MRI PDFF \