b12 injection versus pill Why do people prefer injections over pills for vegan diets? B12 Injection vs. Oral Supplements:

Injecting in a fed state or evening window reduces fat oxidation efficiency by 3040% due to elevated insulin and circadian suppression of NAMPT activity

Some people need injections every few months, while others may require more regular treatment

However, it can take several weeks for the full benefits to be realized, depending on the individual's level of deficiency and response to treatment.

Do not use in patients with known hypersensitivity to Hydroxocobalamin or cobalt

There were seven key themes surrounding those not affected: self-medication

Cyanocobalamin is the most widely used form of Vitamin B12, and has hematopoietic activity apparently identical to that of the antianemia factor in purified liver extract