Habitual diet
For both Phases 1 and 2, the habitual diet did not differ between groups for energy, protein, fat or carbohydrate intakes (all The nutritional content of the participants’ diets during Phase 2 of the studyValues represent mean ± SD. Participants underwent 10 wk of high-volume resistance exercise training with dietary intervention, alongside DXA and MRI scans, muscle biopsies, and strength testing, at regular intervals to characterize resistance exercise-induced muscle adaptations. In OMNI2, participants consumed an omnivorous diet with most of the protein coming from animal-derived sources. In VEG2, participants consumed a diet with the majority of dietary protein coming from non-animal sources. Participants in OMNI2 received a milk protein supplement (47-g protein daily), and participants in VEG2 received a mycoprotein supplement (46-g protein daily). Dietary data were analyzed with repeated measures 2-factor ANOVA. f, female; m, male; OMNI, omnivorous; VEG, vegan.