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4 Diagnosis of deficiency There is no simple definitive laboratory test to establish B12 deficiency
Studies have examined how these metabolic changes affect various cellular processes including energy metabolism and gene expression
Deficiencies in red blood cell production lead to anemia, which causes you to feel fatigued and weak
unregulated and alone is the single biggest safety factor in the whole conversation
Foods like meat, eggs, dairy products, and fish are excellent sources of vitamin B12
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