The main reason that a doctor would prescribe vitamin B12 injections is if the patient is unable to obtain enough vitamin B12 on their own, whether they have pernicious anemia or are unable to get enough of the vitamin through their diet alone
CL Answer Are there side effects from collagen supplements
Running them together amplifies that signal
Increased expression of Braf, Egfr, Egr1, Hdac7, Mapk1, Mapk3, Mapk14, Plcg1, Prkcg, Ptk2, Pxn, Src, Srf, and Vegfa is noted at 5 min
In research models where caloric intake is unrestricted, this is typically well-tolerated
People with sluggish liver function