If the allegations of slave labor, violent land conflicts and illegal deforestation within the Brazilian soy industry prove to be true, it is "completely unacceptable," Erlend Sodal, managing director of Norwegian feed giant Skretting Norway told IntraFish.

"If it is true it is unacceptable for Skretting – but we need to find out and do our checks on this serious matter," he said.

Skretting has already been in dialogue with its biggest soy supplier in Brazil – Selecta – "to discuss and determine the facts and check it out."