New research shows a third of teachers are bring in food to feed hungry school children.
The report says children rely on teachers and food banks, which has inspired schools to set up breakfast clubs for the hungry pupils.
The Kellog's survey, carried out by YouGov, also found a a quarter of teachers in Greater London have seen an increase in the number of pupils arriving at school hungry, with 38% saying they see children come to school hungry every day.
A third of teachers also reported to seeing a child fall asleep in class and attribute their tiredness to hunger or thirst. A third also said they had bought in food specifically for a child they suspected was going without food.
The survey reports 48% of teachers say they suspect children go without because their parents are unable to afford it.
Jill Rutter, Head of Policy and Research at the Family and Childcare Trust, joined London Live to discuss the report's findings.