Extended Data Fig. 1: Primary outcome order effect, percentage weight change presented by (a) diet order and (b) randomisation arm.

Estimated marginal means and standard errors computed from mixed-effects models adjusted for randomisation arm and night-shift status, with an interaction effect for diet and randomisation arm, and a random effect for participant. Abbreviations: MPF: minimally processed food; UPF: ultra-processed food. Intention-to-treat N = 50.