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PubMed Nauck, M.A., Quast, D.R., Wefers, J., & Meier, J.J
Blood serum tests assume if B12 is in the bloodstream, then your body can absorb it, but that's not the case with so many regarding B12
It is not intended for human or animal consumption, clinical use, therapeutic use, veterinary use, or diagnostic purposes
Vitamin B12 is one of those vitamins that are only really naturally attained through diet, making anyone who has dietary restrictions or trouble absorbing vitamins through diet alone at risk of suffering from a deficiency
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