intermittent fasting and glutathione from dawn to sunset for four consecutive weeks induces anticancer serum proteome response improves metabolic syndrome Frontiers | Fasting the mitochondria

To see how it fits into the broader antioxidant network, read Does Glutathione Regenerate Vitamins C and E

doi: 10.1186/s13104-017-2393-3 Shipton, M., & Thachil, J

You may not get enough B12 in your diet if you are: Vegan Vegetarian Over 50 Living with digestive conditions that affect nutrient absorption, such as IBS, celiac, or Crohns disease Taking certain medications like metformin or proton pump inhibitors (PPIs) What are the symptoms of B12 deficiency

The value of selenium upon glutathione peroxidase 1 activity and oxidative stress mitigation in SARS-CoV-2 infection and COVID-19 disease has been clearly emphasized recently (Seale et al., 2020

J 469 , 1723 (2015)