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[9] [5] It is given by mouth, by injection into a muscle, or as a nasal spray

These blood tests can help determine if youre low on B12 (6)

The discrepancy between demonstrated subcutaneous efficacy (or lack thereof) and marketed oral supplements creates a fundamental problem: commercially available AOD-9604 supplements likely deliver negligible systemic peptide due to oral bioavailability limitations

As vitamin B12 has such an essential role in supporting healthy red blood cells, including more of it into your diet may help reduce your risk

FIGURE 1 In the receptor-mediated absorptive process, ingested B12 is initially bound to Haptocorrin (HC)/R-factor secreted by salivary glands

What would make me not a good candidate