Research has shown that even in people without any underlying health conditions, when taking a 500 microgram oral supplement, only 10 micrograms (or 2%) is absorbed (Carmel, 2008)
Addressing Common Concerns About B12 Shots Are B12 Shots Safe
There were cured jaundice, weight loss, liver enlargement, microscopy (i.e., piecemeal necrosis, focal lytic necrosis, apoptosis and focal inflammation, and disturbed cell proliferation (Ki-67-staining), cytoskeletal structure in the hepatic stellate cell (-SMA staining), collagen presentation (Mallory staining), and biochemistry presentation (Sever et al., 2019), and counteracted the increased NOS3 expression, interleukin (IL)-6, tumor necrosis factor (TNF)-, and IL-1 levels
The consistency of safety findings across these independent trials enhances confidence in the conclusions