the article expresses concern about the conclusions of a clinical study published in Nature Medicine about the effect of ultra-processed foods (UPF) on weight loss. The study included 50 overweight or obese participants who ate either a UPF diet or a minimally processed (MPF) diet according to the British Nutrition Recommendations for 8 weeks, with a 4-week break and then switching to the other diet. Both diets produced significant weight loss, but the effect was almost double on the MPF diet - 2% over 8 weeks, which would translate to 13% for men and 9% for women over a year, compared to 4% for men and 5% for women on the UPF diet. Participants on the MPF diet reported a two-fold improvement in taste control, a four-fold improvement in taste control for salty foods, and an almost two-fold improvement in resistance to the strongest taste. The UPF diet, although nutritionally balanced, resulted in lower palatability ratings than the MPF diet. The article highlights that the participants' usual diet contained an above-average proportion of UPF outside the national recommendations.