Ultra-processed foods are not accidentally irresistible. How companies calibrate sugar, fat and speed of delivery to keep you coming back. Illustrated by Sarah Zahr.

Every year a bill arrives: healthcare spending, lost productivity, disability and early deaths. What the true cost of obesity looks like, and where it comes from.

Humans have always processed food. So when did it become about shelf life, scale and repeat consumption? How ultra-processed foods were born. Illustrated by Sarah Zahr.

There is nothing new about junk food ads. How ultra-processed food companies market to children where they live, learn and play, and the policies that work.