How bad does it have to be for Reimu to be given food by a yukkuri philanthropist?
Yukkuri Lunacha's ringlets become croissants.
As manager of a bakery, that Lunacha donates baked goods to poverty-stricken areas (the Hakurei Shrine in particular).
There are a number of yukkuri who become helpful via parts of their bodies becoming foodstuffs.*Nom* *Nom*