By Hugo Francisco de Souza Reviewed by Susha Cheriyedath, M.Sc. Aug 11 2025 Despite covering some ultra-processed foods, the UK’s HFSS rules leave millions of daily calories unregulated, researchers say it’s time to rethink policy and tackle additives head-on. Study: Overlap between ultra-processed food and food that is high in fat, salt or sugar: analysis of 11 annual waves of the UK National Diet and Nutrition Survey 2008/2009–2018/2019 . Image Credit: Rimma Bondarenko / Shutterstock In a