The Social Democrats say consumers will vote with their feet if they see how much profit their supermarket is making.
The party is bringing a motion before the Dail later looking for major retailers to provide transparency on their finances.
A Barnardos study this week found one in five families had to cut back or go without food over the last six months.
Social Democrats TD Jennifer Whitmore says shoppers are entitled to know if they are being gouged……………..
