can you take b12 tablets with b12 injections Are Vitamin Shots Right for You? Vitamin B12 Supplements and Injections

People over 50 are most at risk because your gut absorbs less B12 as you age

When vitamin B12 is released from foods by peptic digestion, it is bound to intrinsic factor, affording partial protection against gut microorganisms and parasites during transport through the gut to the terminal ileum, where the complex binds to microvilli of the intestinal epithelial cells

Discuss any concerns with your healthcare provider

This is not unheard of, as drugs like pioglitazone and acipimox both reduce metabolic complications without treating obesity at all

So, if your vitamin B12 deficiency is due to an autoimmune disease in which your stomach doesn't make intrinsic factor, supplements might not work for you, and you will need injections