Dicken, S.J., Jassil, F.C., Brown, A. et al. Ultraprocessed or minimally processed diets following healthy dietary guidelines on weight and cardiometabolic health: a randomized, crossover trial. Nat Med 31, 3297–3308 (2025). https://doi.org/10.1038/s41591-025-03842-0
From the discussion: Separate eight-week diets consisting of minimally processed foods and ultra-processed foods both resulted in weight loss, but significantly greater reductions occurred on the minimally processed food than on the ultra-processed diet.