Erectile dysfunction (ED) is the inability to achieve or maintain a rigid penile erection suitable for satisfactory sexual intercourse, which substantially reduces the quality of life for patients and their partners. While ED prevalence increases with age, various co-morbidities such as depression, obesity, lack of exercise, diabetes mellitus, hypertension, dyslipidaemia, and cardiovascular disease, are associated with the condition⁷. Caffeine has been reported to associate with multiple physiological effects on vascular function and hormonal balance that might influence sexual function. Nonetheless, the meta-analysis of 4 cohort studies comprised 51,665 male cohort members by Karimi et al. (2024) revealed no significant relationship between coffee consumption and the risk of ED (relative risk [RR]: 0.94, p=0.999)⁸.

References
7. McMahon et al. Med J Aust 2019; 210: 469–76.  8. Karimi et al. J Health Popul Nutr 2024; 43: 154.