Here is a study that showed that fructose (aka sugar, as sugar is half fructose) restriction in metabolically damaged children leads to marked improvement in their liver function.
https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC4736733/
Searched for “healthy plate” +children.Here’s #1 in the results…https://www.hsph.harvard.edu/nutritionsource/kids-healthy-eating-plate/P.S. The Mediterranean diet would be an excellent guide to use!