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You can become deficient in vitamin B12 if you dont get enough of it over time

Here's where experience matters: researchers routinely confuse "dose per injection" with "concentration per milliliter." A 250mcg dose doesn't mean you need 250mcg/mL concentration

three randomized clinical trials Each of these studies shows that in terms of increasing serum vitamin B oral vitamin B 12 is just as effective as IM B 12 12 levels

For instance, if you need 2ml, pull the plunger to the 2ml mark

At the beginning of pregnancy, low vitamin B12 levels can increase the risk of neural tube defects

International Journal of Molecular Sciences , 25(2), 1314