how often can i give myself a b12 injection Vitamin B12: Frequently Should Get It? How to Self-Inject Vitamin B12

Heres my game plan: Test for intrinsic factor antibodies if my doctor offers this Try high-dose sublingual B12 (5000mcg daily) for 8 weeks as a test If my B12 stays below 400 pg/mL, go straight to injections Calculate the cost difference to justify the investment The 10% Rule If youre absorbing less than 10% of your oral B12 (you can estimate this by comparing your supplement dose to your blood response), weekly shots often cost less than daily high-dose pills

We dont recommend this for supplementation and the other forms are much better

Getting regular vitamin B12 shotseven if youre not diagnosed with a deficiencyis safe

It takes some getting used to but giving yourself or someone else a subcutaneous injection gets easier with practice

B12 fits into your care plan it doesn't replace the other pieces