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If you have a vitamin B12 deficiencyperhaps due to conditions like pernicious anemia, certain digestive disorders, or a strict vegan dietyou may experience symptoms such as fatigue, weakness, and low energy
Vitamin B12 sources and microbial interaction
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Never discontinue prescribed B12 treatment without medical advice, as untreated deficiency can lead to serious complications
"Frailty and the Prediction of Negative Health Outcomes: A Meta-Analysis"
The injection is given subcutaneously or intramuscularly and can be self-administered at home after training
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