I was thinking about this, and decided removing the need to feed oneself should be completely removed altogether. That way, we won't even know what hunger is.
Something should also be done about money, or more so, the value of things. but that doesn't really depend on God, so...
That's about it, every other problem we have is because of OUR decisions.
Illnesses are part of nature, and so are the phenomenons like volcanoes, hurricanes, and such. These are necessary, for the general world's wellbeing, as well as the beings that inhabit it. Thus, they are not problems, just obstacles.
If we were to not have the need to feed ourselves, then we would be able to use that time for ourselves. Maybe water should be necessary, but food? No thanks. Also... no more shit. Literally.