Hi, many thanks for the query!
You haven't mentioned whether you consume alcohol or not, anyways, if yes,
then best & fastest way to heal or cure your fatty liver
is to STOP alcohol intake.
Eating outside may not worsen it.
You can start "LIV 52"-Himalaya with your doctor's opinion.
You also haven't given details of your kidney
stones, but for that
consult your Urologist
Wish you a good health.