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But unless you have a B12 deficiency, theres really no role for it, Sukol says of B12 shots and supplements

Treatment for a B12 deficiency The good news is that in most cases, hair loss caused by a B12 deficiency can be reversed

Payers want to see that the prescriber is following the FDA-approved escalation protocol: starting at 2.5mg weekly for 4 weeks, then increasing to 5mg weekly, with subsequent increases as clinically indicated

Other Clinical Indications for B12 Therapy Some cases of tiredness, weakness, and other symptoms linked to B12 deficiency might also need injections

However, the best option depends on the reason B12 is being considered, your symptoms, your health history and whether deficiency has been confirmed

In the winter, when were already prone to feeling tired and run down, maintaining healthy B12 levels can ensure that your body has the oxygen it needs to function properly and stay energized