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Optic nerve atrophy can worsen in patients whose methylcobalamin levels are already elevated
The following groups of people are at a greater risk of developing a vitamin B12 deficiency: Vegans or vegetarians People 75+ years Having a digestive system disorder like Crohns or celiac disease Drinking excessive amounts of alcohol Having Sjgrens syndrome Taking certain medications like oral birth control or metformin Common symptoms of a vitamin deficiency include fatigue, numbness, poor balance, memory loss, and breathlessness
This means the B12 is injected into the fatty tissue just beneath the skin
Absorption rate compares favorably for both injectable methods over oral supplements, though IV infusions hold an edge
The theoretical advantage is significant
