The decision to add B12 is made by individual prescribers working with compounding pharmacies, which is why B12 only appears in compounded formulations
B12 shots are recommended for individuals with a potential B12 deficiency, as well as individuals who feel they need additional nutritional supportespecially when oral supplements are not effective
if you take warfarin or a related drug, your clinician may schedule extra clotting-time tests
You still need to control your diet, train consistently, and manage lifestyle factors
But these arent all of the medical reasons and there are also medications that interfere with B12 absorption
The presence of comorbidities can significantly impact the pharmacokinetics of Vitamin B12, making it essential to adjust dosing protocols. Expert Opinion on Vitamin B12 Therapy Genetic Factors Affecting B12 Metabolism Genetics play a role in how well someone can use Vitamin B12