Conclusions
This study tested the effectiveness of a multicomponent worksite intervention focused on adherence to the Mediterranean diet in modifying the dietary habits and risk factors of US career firefighters. At 1 year, firefighters in the Mediterranean nutrition intervention intervention group had significantly improved dietary habits compared with the control group. Given the high rates of diet-related mortality in this population, these novel results support the need for additional similar studies in other more diverse populations of firefighters to replicate and assess the generalizability of these findings.