Muscle cramps and weakness If a B12 deficiency is preventing the body from producing enough red blood cells to get oxygen to muscle tissues, you may experience associated symptoms, like sporadic muscle cramps or weakness [3]
Not for All Patients Contraindicated in individuals with a personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
Typically, the effects of these injections are noticeable within hours to a few days, lasting anywhere from several weeks to a couple of months, depending on your metabolism and lifestyle
Vegans and "patients with diseases like Crohn's and colitis as well as people with pernicious anemia are also particularly vulnerable to deficiency," added Silverstein
There are other services that Medicare does cover for weight management like weight-loss counseling and preventative care
The honest answer is that it depends on the indication, and the timeline varies enough between tissue types that a single number is misleading