Fasting for male fertility—a mixed methods study - May, Katharina T.; Behling, Jocelyn; Sochiera-Plegniere, Katharina; Batschari, Katharina; Kessler, Christian S.; Michalsen, Andreas; Kandil, Farid I.; Blakeslee, Sarah B.; Jeitler, Michael; Stritter, Wiebke; Koppold, Daniela A. (Frontiers in Nutrition, 2025)