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B12 THERAPIES: PILLS Additional B12 is also available as an orally-swallowed supplement
People taking high-dose B12 supplements (1,000 to 5,000 mcg daily), receiving B12 injections (cyanocobalamin or methylcobalamin), or consuming heavily fortified foods can easily push their serum levels above 900 pg/mL
Insurance architecture, not clinical evidence, often determines who gets coverage
What's your BioAge
Quick refresher: what B12 actually does Vitamin B12 (cobalamin) is a water-soluble vitamin involved in red blood cell formation, nervous system maintenance, and the methylation reactions that support energy metabolism
