A member asked:

Taking b12 supp for deficiency with symptoms of fatigue & lightheadedness. how long should i take them before expecting improvement and following up?

A doctor has provided 1 answer

Dr. Andrew Shiller answered

Specializes in Physical Medicine and Rehabilitation

It depends....: are you taking it by pill? By injection? How much b12? Did they diagnose anemia? If so, what was your hemoglobin or hematocrit? Did they diagnose a low b12 level? What was it? Sorry for all the questions, but they're important for a clear answer. Many people feel great a few days after a b12 injection, but it depends on the circumstances. I hope you feel better soon!

Dr Chuu agreed

Answered 11/28/2017

2.2k views

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A member asked:

Taking b12 supp for deficiency with symptoms of fatigue & lightheadedness. how long should i take them before expecting improvement and following up?

A doctor has provided 1 answer

Dr. Andrew Shiller answered

Dr Chuu agreed

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