can b12 be injected in the stomach Vitamin Injection Sites: All You Need to Know Vitamin B12 Injection | Activ8

If your body does not have sufficient B12, then it cannot make energy and so therefore you are weak, tired, or unfocused

doi: 10.1080/21623945.2016.1148834

The 5mg dose offers 5 times the strength of the 1mg

It's important to discuss your options with a physician, try different combinations and doses to see how your body reacts, and adjust your dosages to fit your needs and your goals

In animal-model work, NNMT inhibition with 5-Amino-1MQ has been associated with changes in adipose-tissue mass, in NAD+ pool sizes (because NNMT consumes nicotinamide that would otherwise feed the NAD+ salvage pathway), and in methyl-donor dynamics (because NNMT consumes S-adenosylmethionine)