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But if you have a diet that's chronically deficient in this essential nutrient, you may develop a range of unpleasant symptoms

Understanding whether your previous medication caused fatigue helps you anticipate whether switching will improve or worsen this symptom

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This gives it the name cobalamin. Unlike most other vitamins, B12 acts as a coenzyme in two critical biochemical reactions: Conversion of homocysteine to methionine Enzyme : Methionine synthase Why it matters : This reaction supports methylationa process that affects DNA synthesis, neurotransmitter production, and detoxification pathways