However, intramuscular administration isnt necessary
If your B12 level is below 200 pg/mL (picograms per milliliter), you're considered to have a deficiency
(Maybe thats why Grandmas raw-egg concoction works!) Vegans and vegetarians in particular are at risk of deficiency because they dont eat the eggs, cheese, and meat that help maintain healthy B12 levels
2 Materials and methods 2.1 Study design This study was a multi-center, prospective, double-blind, randomized clinical trial aimed to assess the absorption rate and hence bioavailibility of an innovative oral Sucrosomial B12 (Sidevit B12 developed by Pharmanutra S.p.A, Pisa, Italy) in enhancing circulatory B12 levels in healthy deficient adults, compared to various conventional oral B12 supplement formulations, selected randomly from local pharmacies at each participating center
It matters if you're working in a facility outpatient billing environment
Thorburn, E