is oral b12 as effective as injections Vitamin vs. Supplements: Which Better? The Truth About B12 Injections:

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GRAS Designation & Food Substance Classification In 2023, AOD-9604 received "Generally Recognized as Safe" (GRAS) designation from the FDA when submitted as a food substance or dietary supplement ingredient

As you see a rise in Vitamin B12 levels, your doctors will decide to alter the levels of the dosage depending on the condition

Regulation of SIRT 1 mediated NAD dependent deacetylation: a novel role for the multifunctional enzyme CD38

[1] Persistently high B12 levels warrant medical investigation, as they may signal liver disease, kidney dysfunction, or certain haematological disorders