doi: 10.1210/en.2006-0453
Vitamin B12 Injections Commonly referred to as the energy vitamin, B12 is a vitamin that helps support the bodys metabolism
This work has significant implications for understanding muscle preservation during fat loss
In fact, one study found that peoples bodies absorbed about 49% of a 1-mcg dose of cyanocobalamin, compared to 44% of the same dose of methylcobalamin ( Conversely, another study comparing the two forms reported that about three times as much cyanocobalamin was excreted through urine, indicating that methylcobalamin may be retained better within your body ( However, some research suggests that differences in bioavailability between the two forms may be insignificant and that absorption could be influenced by factors such as age and genetics ( Unfortunately, recent research directly comparing these two forms of vitamin B12 is limited
[DOI] [PubMed] [Google Scholar] 224.Sukhija R, Kakar P, Mehta V, Mehta JL
The clinical detail is well established, and the legal position has tightened sharply in the last year