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Do not use in children, pregnant or lactating women
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Serum B12 above 300 pg/mL is often interpreted as normal (6) Serum B12 levels between 200 and 300 pg/mL are considered borderline (in which case further enzymatic testing may be helpful for diagnosis) (6) Enzymatic testing: serum levels of MMA and homocysteine should both be elevated if B12 deficiency is present
Normal alveolar epithelial lining fluid contains high levels of glutathione
Glutathione also strengthens the immune system to fight off infections, and protects cells from suffering from oxidative damage
