This is despite the fact that all P1-5 pupils in Scotland are now entitled to a free school meal.
Mr Greer, who is a member of Parliament’s Education Committee, said: “Children cannot get a good education if they are hungry at school.
“I think East Dunbartonshire Council rightly ensures that every pupil has a midday meal, even if they don’t have the money to cover it, but these figures clearly show that debt is being driven away from families who simply cannot pay.
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“With the cost of living crisis putting enormous pressure on family finances, now is a good time to write off any outstanding debts for school meals.
“Sustaining debt causes stress and embarrassment for students and their families, but I know staff are deeply uncomfortable asking students for money that they know the family does not have. .
“I am proud that we are rolling out free school meals for all primary school children, as well as taking other measures to help family budgets, such as free bus travel for under-22s.
“Cancelling this debt would be a great way to also help families with the financial burdens they face.”