Further, even though B12 shots are a good way to remedy B12 deficiency in susceptible people, studies show that B12 supplements do just as good of a job
Its stability characteristics allow for extended observation periods, making it suitable for longitudinal assay designs and comparative analysis studies
However, simply requesting an injection a day early is unlikely to meet this threshold
[131] [132] Species from the following genera and the following individual species are known to synthesize B 12 : Propionibacterium shermanii , Pseudomonas denitrificans , Streptomyces griseus , Acetobacterium , Aerobacter , Agrobacterium , Alcaligenes , Azotobacter , Bacillus , Clostridium , Corynebacterium , Flavobacterium , Lactobacillus , Micromonospora , Mycobacterium , Nocardia , Proteus , Rhizobium , Salmonella , Serratia , Streptococcus and Xanthomonas