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Some people feel improvement in fatigue sooner, but blood markers and neurologic symptoms may take longer to assess
This allows your body to access and use B12 immediately
The injection site may feel a quick pinch, but the entire process takes just a few minutes and is well tolerated by most people
Pale or yellowish skin: A shortage of B12 hampers red blood cell production, fading your complexion or adding a hint of jaundice as anemia creeps in
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