Test your knowledge in eight questions to prove you know your onions from your emulsifiers

A major global report released this week linked ultra-processed foods to harm in every major human organ. For people in the US, the UK and Australia, these foods make up more than half the calories they consume each day.

But it’s not always easy to tell which foods are ultra-processed.

The term was coined in 2009 by researchers at the University of São Paulo, as part of their Nova food classification system that sorts foods into four groups:

Group one: unprocessed or minimally processed foods including whole fruits and vegetables, milk, oats and rice.