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A 2020 study found that the death rate among people with the highest levels of B12 in their bodies was almost twice as high as that of people with the lowest levels of B12
For intramuscular injections, press on and pull your skin so that it is taut
When To Take High-Dose Vitamin B12 Supplements Treating Vitamin B12 Deficiency People take high-dose vitamin B12 to treat a vitamin deficiency (levels below 200 to 250 pg/mL)
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