It was found that high doses of selenium would increase the oxidative stress in yeast, thus increasing the process of lipid peroxidation
PubMed.gov search for peer-reviewed, published articles on glutathione
Vitamin B12 is found in animal foods, as well as some fortified foods that have added B12
This quaternary structure further enhances the stability of the protein and its binding affinity for glutathione
Shi X, Zhou S, Wang Z, Zhou Z, Wang Z
Good dietary sources of selenium include: Seafood Oysters Brazil nuts Eggs Mushrooms Whole grains Organ meats Dairy products DIRECT GLUTATHIONE SUPPLEMENTATION While diet is the best (and preferred) way to boost glutathione levels, there are various glutathione supplements available