Full article: Immunocytochemical Localisation of Phospholipid Hydroperoxide Glutathione Peroxidase in Bull's Spermatogenic Cells Glutathione = the master antioxidant. But is it the magic fertility fix everyone thinks it is? Here's the truth: It protects eggs and sperm from oxidative stress. Low levels are linked Selenium Fortified Nutritional Yeast: A Supplement to Support Male Fertility Explore Yeast PDF) EFFECT OF IN VITRO ACTIVATION BY GLUTATHIONE SUPPLEMENTED MEDIUM ON SPERM MOTILITY, MORPHOLOGY AND VITALITY DURING SPERM CRYOPRESERVATION OF ASTHENOZOOSPERMIC MEN Changes in Sperm Glutathione and Glutathione Redox States Correlate to Poor Sperm Qualitative Measures