In particular, B12 injections may not be right for you if you have kidney disease, Lebers disease, or allergies to cyanocobalamin, cobalt, or other medications, foods, dyes, or preservatives
What should I expect during a vitamin injection
Despite employing conservative assumptions in this work, the primary source of uncertainty stems from the absence of any formal guidance on the parameterization of these models and validation data, unlike the well-established validation of physiologically based kinetic models against human clinical data (Li et al., 2021
That is, low serum levels also need not immediately imply vitamin B 12 deficiency
Even with normal absorption efficiency, low intake creates deficiency risk
TRPC6 is also expressed in these erythrocytic progenitor cells [99], and in humans, erythrocytes TRPC6 accomplishes Ca 2+ influx [100] in contrast to mouse erythrocytes, where TRPC4/5 are involved [101]