b12 injections versus pills Orthopedic claims tablet gives 'false positive results' compared to injection; internal medicine expert says 'not necessarily true' | Health News The Advantages of B12 Injections

Examples of these health conditions include those with a lack of stomach acid, those who have undergone bariatric surgery, anemia caused by the inability to absorb the vitamin, other autoimmune digestive diseases, as well as several medications

How often should you get B12 injections

Body size matters

You may feel the noticeable effects for about one to two weeks, but traces of the vitamin can linger longer because your liver stores some of it

Is there any preparation needed before receiving a Vitamin B12 shot

"Mutation spectrum of MMACHC in Chinese pediatric patients with cobalamin C disease: A case series and literature review"