side effects of b12 injections in humans Vitamin for Aging and Longevity B12 Shots Side Effects And

At typical dietary doses, B12 is absorbed at a rate of about 40-50% by way of intrinsic factor

The palpitations continued alongside an array of other symptoms, including dizziness, feeling lightheaded, hair loss, pins and needles/numbness in her hands and feet

Age: Older adults are at higher risk of B12 deficiency and may require regular injections

The most common sites for B12 injections are the deltoid (upper arm), vastus lateralis (outer thigh), ventrogluteal (hip), abdomen, and outer upper arm for subcutaneous injections

noted that the research on body losses is relatively old, inconsistent, and it might not be further clarified due to the ethical concerns with using radioisotopes for tracking B12 in the body