Vitamin B12 is a water-soluble vitamin that acts as a coenzyme for various metabolic functions, including fat and carbohydrate metabolism and protein synthesis
The results of in vitro measurements using pQCT and Archimedes principle, in addition to ash weight determinations, show that the increases in cortical and total BMC were due to an increased growth of the bones with increased bone dimensions, whereas the volumetric BMD [bone mineral density] was unchanged. This also holds true when bone formation is purposefully inhibited by a bone-catabolizing compound such as methylprednisolone: the periosteal bone formation rate increased four-fold in animals injected with [methylprednisolone] and [Ipamorelin] in combination, compared with the group injected with [methylprednisolone] alone
Egeberg A, Weinstock LB, Thyssen EP et al
8 weeks on, 4 weeks off: The most common cycling pattern balances sustained exposure with adequate recovery
doi: 10.1210/jcem-63-2-492
The body doesnt create separate repair systems for each organ