For all the health problems you have mentioned it is important to avoid oily, fried foods
Until he recovers from jaundice it is important to take light food that is easily digestible. Coconut water , lemon juice in moderation should be ok, but keep an eye on blood
sugar.
Give plenty of steamed vegetables. It is best to avoid meat until his
liver enzymes comes back to normal. Also reduce salt intake.
Alcohol must be completely avoided