People find it harder to lose weight on an ultra-processed food diet than one composed of minimally processed foods, even when they are eating healthily, a new study has found.
The University College London study is the first clinical trial to compare the effects of ultra-processed food in “real world” conditions, and could reignite debate over the controversial food category between producers, policymakers and public health experts.
Participants followed government advice for a balanced diet for eight weeks and on average lost weight, both when doing so with ultra-processed foods (UPF) — such as granola bars and ready-meal lasagne — and minimally processed foods (MPF), such as overnight oats and home-made spaghetti bolognese.