This vitamin is key for making red blood cells, nerve function, and DNA
Vitamin B-12 deficiency symptoms may include: strange sensations, numbness, or tingling in the hands, legs, or feet difficulty walking (staggering, balance problems) anaemia a swollen, inflamed tongue difficulty thinking and reasoning (cognitive difficulties), or memory loss weakness fatigue While an experienced physician may notice the symptoms and be able to detect a vitamin B-12 deficiency with a good interview and physical exam, a blood test is needed to confirm the condition
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Many patients then receive maintenance injections about once a month (or in some cases every 2-3 months) to keep their vitamin B levels in the normal range