[2] High-dose intramuscular administration creates a tissue depot that releases vitamin D slowly over weeks, potentially enabling a single injection to lift serum 25-hydroxyvitamin D levels into the sufficient range in severe deficiency and to potentially support bone mineralisation, neuromuscular function, and secondary hyperparathyroidism reversal while bypassing the gastrointestinal tract
The injections sit in the muscle tissue as kind of a reservoir and slowly leak out over time into the blood, explains Joshua Miller, Ph.D., a B12 researcher, and professor and chair in the Department of Nutritional Sciences at the School of Environmental and Biological Sciences at Rutgers University
Fast check-in and very clear instructions about repeat visits
Any reputable provider should screen for cobalt allergy before administering a B12 injection
These platforms connect you with a registered clinician for a remote consultation, who can then issue a prescription for B12 injections if they agree its the right treatment for you
