Metabolism, 46 (1), 89-96
Your doctor can check how much B12 is in your body, but not all of it may be useable
There are a wide range of health benefits and advantages to using B12 injections or shots and these include: B12 is a vitamin that is essential for the production of healthy red blood cells, which as we know, are responsible for transporting oxygen around the body
Fitness buffs and athletes It would be useful for preserving lean muscle while cutting, or to aid recovery faster following hard workouts or injury
however, there is no standardized duration currently in place within the scientific community
Guilloux JP, Douillard-Guilloux G, Kota R, Wang X, Gardier AM, Martinowich K et al (2012)