Glucose-6-phosphatase dehydrogenase (G6PD) is an antioxidant enzyme that is the primary source of NADPH, which is utilized by NOX2 to generate superoxide from oxygen and additionally aids glutathione reductase (GR) in recycling oxidized GSSG back to its reduced form, GSH [59, 60]
Based on the severity, they will determine the dosage and method (oral, IV)
Plus, the symptoms of low B12 can be very subtle, or they may be confused for symptoms of other conditions
Although elemental selenium, selenium dioxide, and selenium sulfide exhibit limited bioavailability, compounds such as selenite, selenate, and selenium-enriched amino acid analogs are more amenable to absorption, particularly when synergized by vitamins A, D and E (28, 29)
Layering isnt failproof (meaning your sun protection can still wear off), but every little bit helps