cysteine and glutathione reaction Glutamate-Cysteine Ligase - an overview The transsulfuration pathway: a source
Description
Full effects may vary depending on your B12 levels and overall health

The consequence of competitive or irreversible inhibition of GR is a decrease of reduced glutathione levels
Viral and bacterial infections can potentially decrease vitamin C levels because they generate reactive oxygen and nitrogen species through leukocyte activation that lead to oxidation of extracellular vitamin C [47]

References Pollard, B., & Pomfrett, C

Clinical Pathobiochemistry of Vitamin B12
