The recommended daily allowance (RDA) for vitamin B12 for most adults is 2.4 micrograms (mcg)
Emerging Combination Approaches New studies are looking at B12 with other nutrients
Injections deliver the vitamin directly into your bloodstream for faster absorption and immediate benefits, while supplements offer a convenient daily option for long-term maintenance
Hypersensitivity reactions may manifest in various ways, ranging from local injection site reactions such as erythema, swelling, and pruritus to more severe systemic reactions including angioedema, anaphylaxis, or generalized urticaria
The usual dose is 1 mg per day, but this may be adjusted depending on the patient's individual needs
This is not equivalent to the FDA granting approval as a therapeutic drug, and it carries no standing under UK or EU medicines law