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Symptoms of low levels of Vitamin B12 in your body include anemia, weakness, fatigue, heart palpitations, pale skin, constipation, diarrhea, bloating, loos of appetite, nerve problems such as tingling or numbness, muscle weakness, loss of vision, mental problems such as changes in mood and depression
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However, intravenous administration differs significantly from oral supplementation in terms of bioavailability and clinical practicality
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