does b12 injections cause weight loss If you have a low vitamin level, can go a long way toward improving your health and well-being. But if your B12 level is normal, don't fall for claims that B12 Injections for Weight Loss:

If a client has side effects after a B12 injection, they should talk to their doctor

Another study in the Journal of the American Medical Association notes that among those with diabetic nephropathy (loss of kidney function due to diabetes), combining vitamin B6 (25 mg) and folic acid (2.5 mg) (B-complex vitamin) with 1,000 mcg of oral B12 per day for six years increases the risk of cardiovascular events, including heart attack and stroke

Additionally, people with kidney or liver disease, iron or folic acid deficiencies or bone marrow-affecting conditions should consult their doctor before using B12 injections[18]

Kannt A, Pfenninger A, Teichert L, et al