how low does b12 need to be for injections Oral vs. Intramuscular Vitamin in Vitamin B12 Deficiency • The Blood Project Pernicious Anemia: Definition, Symptoms, Causes
Description
The most commonly reported events in active arms were mild and transient: injection site reactions in some subcutaneous subjects, occasional headache, and in some oral dosing arms, minor gastrointestinal tolerance issues
UCLA Health
In other words, the preclinical signal appears against a backdrop of controlled energy intake and activity, not as a standalone effect that overrides diet
There are several different dosing regimens for this type of B12 therapy
Physiol Rep
After that, you need one every month
