Severe B12 deficiency is widely reported and leads to pernicious anemia since your body needs B12 to make red blood cells, and a deficiency limits its capabilities to build them
Unfortunately testing your serum levels of B12 does NOT tell you much is actually in your cells
For someone with mild fatigue and slightly low blood levels, a conservative approach of one injection every four weeks might be sufficient
While methylcobalamin may be more readily absorbed than synthetic types, research has not shown a significant difference among the various vitamin B12 types
The improvement in energy is often noticeable because the body is able to quickly absorb the vitamin directly into the bloodstream, bypassing any digestive absorption issues
The typical dosage is 1,000 mcg per injection, although this may be adjusted based on your individual health needs and goals