 This systematic review examined the effectiveness of interventions aimed at promoting plant-based proteins from lower environmental footprint sources. It found that half of individual-level interventions targeting people with chronic diseases successfully reduced red slash processed meat intake in the short term. Additionally, most microenvironmental studies focused on increasing plant-based diet and dining facilities, resulting in positive dietary changes. This suggests a need for more research on how to effectively promote plant-based proteins from lower environmental footprint sources in the general population. This article was authored by Rimante Ronto, Gulsasa Burri, Gianna Maxi-Laila Robbers, and others.