Evidence shows that nutrition can improve outcomes for PCa survivors; however, dietary interventions for prostate cancer patients are limited. Furthermore, all PCa-related interventions reported thus far are limited in one important way: they focus only on the patient/survivor. Yet, the impact of prostate cancer extends to the spouse as well. When it comes to lifestyle interventions, responsibility for health behaviours and food preparation typically falls on the wife, particularly in today's cohort of PCa patients. As such, engaging the partner is crucial to ensure success for the survivor, and provide benefits for the wife as well.