Associations Among Obesity, Dietary Habits, and Erectile Dysfunction in Cardiac Patients: A Cross-Sectional Study

Background: Obesity is a well-established risk factor for erectile dysfunction (ED), however, the association between specific dietary habits and sexual function among men with cardiac diseases remains insufficiently characterized. The objective of the present study was to analyze associations among obesity-related factors, dietary habits, and ED in cardiac patients. Methods: A cross-sectional analysis was performed in adult men with coronary artery disease (CAD). Erectile function was assessed using the International Index of Erectile Function (IIEF). Dietary habits were self-reported. Multivariable analyses were conducted to assess associations between demographic and dietary factors with IIEF scores. Results: 589 patients were included (mean age 60.1 ± 9.7 years; range 28–85). ED was present in 76% of participants, and 81% had excess body weight. Age demonstrated the strongest negative association with IIEF score. Adherence to a low-fat diet was associated with nearly a 2-point higher IIEF score, while each additional daily serving of vegetables was associated with an approximately 0.7-point increase in the IIEF score. Conclusions: Simple dietary modifications, particularly reduced fat intake and increased vegetable consumption, are associated with better erectile function in men with CAD. These findings suggest that dietary factors may be associated with erectile function; however, further prospective and interventional studies are needed to assess their clinical relevance.