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Headache or dizziness
There are no reported risks associated with large doses of B12, since the vitamin is water soluble and excess amounts are flushed out of the system
We use a strict sterile technique, cleaning the site with a medical-grade alcohol swab to ensure everything is safe and sanitary
The most common sign of a deficiency is fatigue and low energy
Vitamin B12 Intramuscular Dosage Guidelines Intramuscular B12 injections are often used for people with absorption problems
Its primary function is to transfer a methyl group to nicotinamide, a form of vitamin B3
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