Campaigners believe that bread available in the UK is contaminated with a weed killer that "might be" carcinogenic and they are urging that the farming practice should be banned.

For a long time, consumers believe that whole meal bread is a healthy choice, however the recent claim shows that wheat grain contains more deadly residue.

After a thorough research, the World Health Organization published in The Lancet Oncology journal, and concluded that "glyphosate," a commonly used herbicide might be one of the contributing factor that causes cancer to humans.

But the finding was completely dismissed by the German regulators.

Even though there's an argument with the latest report, the Soil Organization believe that the consumers must be informed and protected from the possible threat.

The Soil Association is urging the Government and other sectors involve in the bread making and distributor to protect the health of the consumer by making sure there is no glyphosate residue in the bread.

Soil Association policy director Peter Melchett said, "We cannot ignore the World Health Organisation's findings that glyphosate is a probable cause of cancer - the risks are too great."

"In recent years nearly a third of British bread tested by the Government contained glyphosate. Although the quantities found are well below the official safetly level, this limit was agreed before the latest scientific findings about the dangers of glyphosate," the director added.

"The Soil Association is calling for an immediate stop to glyphosate sprays on wheat destined for use in bread. The glyphosate spraying season starts now, and in the interests of human health and the quality of British bread, the Government needs to call a halt to the spraying before it starts."

Mark Buckingham spokesman of Monsanto's UK said that "Glyphosate is not a carcinogen" and "are safe for human." He added that the Soil Association's allegation has no enough evidence to support their movement.