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Since your body cannot absorb naturally produced B12 from gut bacteria, animal-based dietary sources like meat, fish, eggs and dairy[5] as well as fortified foods or supplements are necessary to meet daily needs
Importance of Se-glutathione peroxidase, catalase, and Cu/Zn-SOD for cell survival against oxidative stress
Inconsistent daily dosing
[PMID: 9632355] PubMed record related to this compound for laboratory literature review
Maintenance Dose: Once B12 levels are normalized, a maintenance dose of 1,000 mcg monthly or every few months may be recommended
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