So glad he ate and drank something.
No sure about specific diets for kidney issues.
I have 2 with liver issues. I home cook for them and these are the things that they eat:
scrambled egg (tiny amount)
low fat cottage cheese (tiny amount)
green beans
sweet potatoes
white potatoes
spinach egg noodles (tiny amount)
dried cranberries
dried blueberries
apple pieces (no skin)
and then their supplements too.
I am sure someone will post with other info for you.
