B12 is recommended for people who are on a limited animal protein intake diet, people who have trouble digesting food (who might also have low intrinsic factor), people taking an antacid might benefit greatly from B12, or people who are very stressed. We recommend B12 injections weekly for one month, then talking with your practitioner about the maintenance dose that might work best for you. Our B12 injection service only includes a standard B12 dose into the muscle belly of the arm. This service is not for injecting B12 into an area of pain. If you are interested in B12 injections for pain, please choose the Trigger Point Injection service.