best place to inject b12 Where Vitamin Where is the to give a B12 shot? Best Vitamin B12 Injection Sites:

The Journal of Nutrition, Health & Aging, 16(5), 460-464

Vitamin B12 shots are the most common way to prevent or treat a deficiency

In practice a GP or nurse may administer off-licence by giving a sub-cutaneous (under the skin, SC) injection but it is important to remember that the GP makes their own decision and takes their own accountability and reliability if they go off-licence

"Pharmaceutical companies will say there are drugs which appear to have potential but never go on beyond an early development phase, so this means the whole process of interpreting data and how things can be categorised under the WADA list is difficult and subject to interpretation." - with Jon Ralph