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To be absorbed, the vitamin needs to be attached to a protein called intrinsic factor
Avoiding vigorous exercise temporarily if exhausted
As levels rise, these symptoms can improve within a few days or weeks
Avoidance of Alcohol and Smoking Alcohol and smoking can interfere with the absorption and utilisation of vitamin B12
(January 1988)
Low energy Fatigue Memory issues Confusion Headaches Fogginess Moodiness Weakness Anemia Using these symptoms as a guide, you can determine when your vitamin B12 shot needs to be repeated
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