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Cons of Injections Requires Medical Supervision: You need a prescription and a qualified professional to administer the shot
They're vegan and gluten-free
A significant gray zone exists between 200 and 300 pg/mL where patients may experience symptoms despite levels that appear technically normal
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However, it's easy to avoid vitamin B12 deficiency by recognizing if you're at risk and taking measures to avoid developing a deficiency
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