There is growing interest in food processing and its effect on health. The Public Health Research (PHR) Program is accepting stage 1 applications to their commissioned workstream for this topic. The PHR program is predominantly interested in the evaluation of interventions operating at the population/group level, rather than at an individual level, which should address health inequalities and the wider determinants of health. Interventions are likely to impact different (sub)populations in different ways and encourage researchers to explore such inequalities of impact in their study design.