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Doctors must look at these to figure out the best treatment
In these clinical cases, injections may be given three times a week for several weeks until symptoms begin to subside
Reason 2: Unrealistic weight-loss expectations
Learn our suggested B12 dosage and frequency
Before booking a B12 injection this spring, get your levels tested
Below is a clinicians view of why it happens, what counts as normal, and the warning signs that mean you should stop waiting it out and speak to a doctor
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