A potential concern with dietary supplements is the lack of regulatory oversight
A B12 injections effect can last anywhere from a couple of weeks to a few months, and the difference comes down to why you are deficient, how well your body holds on to B12, and the dose and schedule you are on
Although it appears insignificant, it is essential for various bodily activities
This is a very difficult one because it is unclear to GPs what constitutes a neurological problem, and who is to decide when further improvement is possible
If you are 65 or older, you are an excellent candidate for B12 injections because your body will likely be less able to process nutrients than it did when you were younger
Summers, Anne Thorburn, Esra Ogru, Robert Gianello, Woei-Jia Jiang, Frank M