glutathione selenium interaction and the Cofactors Selenium stimulates the antitumour immunity:

C.MurphyM

2018 May;3(4):214-22

So, you know, I would say that whether you go rogue and decide to order these things on your own or not, you want to sit and talk to a professional to understand what's your family history, are there any factors in your case that may open you up to more of these side effects

This information may then give rise on one hand to an interoceptive, anti-inflammatory feedback signal sent to the inflamed region via ANS-derived catecholamines and HPA axis-derived corticosteroids, and on the other hand, to the involvement of limbic and cortical brain regions, which modulate the interoceptive networks by involving emotion, memory and cognition

Moreover, an improvement in sperm motility, particularly in asthenospermic patients was significantly observed.[73] Although the published studies generally demonstrate a favorable effect of antioxidants on infertile men, the optimal type and dose of antioxidants together with their exact mechanism of action is still unknown