Prime Minister Justin Trudeau on Thursday said the call comes as Canadians continue to struggle with inflation.
The call comes as grocery prices rose 8.5 per cent in July, showing a slight easing of price growth but still running much hotter than overall inflation. The group said that any discussions on food pricing need to also include processors, manufacturers and other relevant businesses in the supply chain.
"We're going to start with the five largest grocers in Canada represent about 80 per cent of the market, and we're going to be in solution mode with very clear deadlines and very clear outcomes for Canadians. And together we're going to look also at large food processors," he said.