can i have a b12 injection if i'm not deficient How Often Take Injections? Vitamin B12 Deficiency: Causes, Symptoms,
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Over time, these proteins have a compounding effect on the body that contributes to and worsens these conditions
Grubb SC, Bult CJ, Bogue MA (2013) Mouse phenome database

Before taking, speak with your doctor if you are allergic to vitamin b12, have a genetic condition called optic atrophy, have blood in your urine, polycythemia, an ongoing infection, low iron or folate levels, are pregnant or plan to become pregnant, are breastfeeding or plan to breastfeed

Acute toxicity The UDP began at 50 mg/kg and increased by a factor of 3.2
