I mean it's pretty straight forward that this won't fix all hungry people as some portion of said hungry people are addicted to drugs in the extent they'll starve. That in itself may be solvable by things like free drug clinics (drugs are cheap, it's prohibition that makes them expensive).

And for the most part it's not the drug users that we're worried about starving, it's their children at home that tend to be a bigger issue. Hence things like free school lunches do a big service to ensuring they get enough to eat.