Danish researchers at the University of Copenhagen are turning pigs’ blood into a source of protein powder they believe could act as a sustainable source of protein for humans. EuroNews reports that currently, 60,000 tons of pig’s blood is left over from pork production in Denmark and the majority is sold on the international market for animal feed. But due to its high nutritional value, at 90 per cent protein, scientists say it could be used as a supplement in a wide variety of foods instead. The team said that the protein powder is white and neutral tasting, so it wouldn’t change the flavour of any product it was added to but despite the numerous potential uses for the pigs blood protein, animal rights organisations like PETA are appalled by the news.