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How Vitamin B12 Injections Work Vitamin B12 can be absorbed fast into the bloodstream when it is injected directly into the muscle
the mitochondria then produce energy by oxidizing (burning) the fat [5]
Prescription medications are provided only after consultation with a physician to determine if the medication is appropriate for you
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Common experiences after the first injection include: Mild soreness or redness at the injection site (usually resolves within 12 days) Slight improvement in energy levels or mood No immediate noticeable change (particularly common if deficiency is severe) Rarely, mild side effects such as headache or dizziness Some patients report their urine becoming brighter or more intensely coloured following injection, which occurs because excess B12 is excreted renally
