Study finds ultra-processed foods no more palatable than (un)processed but experts dispute results

27 Nov 2023 — Based on an online study, UK researchers suggest ultra-processed foods (UPFs) are no more desired than processed or unprocessed foods, as previously assumed. Instead, they argue that carbohydrate-to-fat ratio and taste primarily determine whether people like a food, not their level of processing or energy density. 

Foods that scored higher on liking (palatability) and desire to eat include those that combine equal amounts (in calories) of carbohydrate and fat — known as the “combo” effect in previous research — and those with an intense taste. Participants liked foods containing a lower fiber content.