Hundreds of people are expected to attend a demonstration at Odena Circle at The Forks Thursday, to draw attention to nutritional experiments performed on aboriginals in the 1940s.

Winnipeg’s rally is one of many planned across Canada to demand the federal government release any documentation they have on other abuses and honour an apology offered to residential school survivors from Prime Minister Stephen Harper in 2008.

The nutritional experiments were reported by The Canadian Press last week after a study from researcher Ian Mosby surfaced.

Mosby found the federal government had commissioned research on aboriginal children and adults who lived in remote communities in northern Manitoba and a handful of residential schools in the 1940s.

"I’ve infrequently seen so much shock among First Nations people but also all Canadians," said Niigaanwewidam Sinclair, who co-organized Winnipeg’s Honour the Apology event.

Sinclair believes the government sat on information about the tests until Mosby discovered it.

He said he hopes the event will "truly begin a path of honesty together that is toward reconciliation and that has not been pursued up to this point."

Sinclair said everyone is welcome at the event and leaders from a variety of faiths will be there to discuss reconciliation.

"Every one of us in all denominations are all part of this grand experiment of community making in Canada, and we all need to join together," he said.

The event begins at noon with a moment of silence to honour those affected by the nutritional experiments.