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A rare cause is transcobalamin II deficiency, a genetic condition where your body can't transport B12 (also known as cobalamin) in your body
Alan and his team are absolutely the best
Improved Mood & Stress Management Vitamin B12 helps in the production of serotonin and dopamine, neurotransmitters that are crucial for regulating mood
The vial should be stored in its original box or wrapped in aluminum foil if the box is not available
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