B12 Folate normal ranges in blood work can be between 220 and 1200. I personally think anything under 600 is too low. B12 injections are the best (by pass digestion) and you can Best supplement for low b12 levels? Is serum folate levels the level o Pernicious Anaemi Vitamin B12 Injection Dosage for Adults: 7 Key Facts & Guidelines Liv Hospital
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what b12 level requires injections B12 Injection Types: Methyl vs. Cyano