best b12 injection site What is the optimal for Vitamin (Cobalamin) injections? B12 Injections at Home -

The site of injection will also vary depending on many factors

Two other surrogate markers of B12 deficiency are elevated homocysteine and MCV, although several other nutrient deficiencies can cause these levels to be elevated, so be sure to work with your provider when interpreting any lab test results

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However, as described below, there doesnt seem to be a benefit for neurological problems in going beyond the amount of B12 generally recommended by the EFSA

Vitamin B12 deficiency While it's most commonly associated with older adults, younger people can experience vitamin B12 deficiency as well