Why ultra processed foods are even worse for us than we thought

Ultra-processed foods are becoming so dominant in our diets, they are causing a surge in diabetes, obesity, heart disease, and depression, that's according to research that has just been released this afternoon. The findings are in three papers by a group of scientists from around the world, including one from New Zealand and published in the medical journal, The Lancet. It's estimated that consumption of ultra processed food here in New Zealand is around 50-60 percent of our diet. The New Zealander who co-authored one of The Lancet papers is Auckland University Professor Boyd Swinburn. He talks to Jesse.