That would probably be the major cause of the need for food banks, along with sanctions imposed, sometimes incorrectly. In both cases it just highlights the shambles the DWP has become under the Tories especially the idiotic bumbling fool IDS and his thick scouse sidekick.
Quite possibly that family had been sanctioned and although they might have had material things bought long ago, they may have not had money for food that particular week. Non malnourished kids can feel hungry too.