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Joshipura KJ, Hu FB, Manson JE, Stampfer MJ, Rimm EB, Speizer FE, Colditz G, Ascherio A, Rosner B, Spiegelman D, Willett WC
Cell-cycle markers and direct cell counts can further clarify whether cell number is actually increasing
Most people get enough vitamin B12 in their diet, but a deficiency may occur in certain health conditions (e.g., poor nutrition, stomach/intestinal problems, infection, cancer)
It produces endogenous peptides for mucosal protection, employs peptide transporters for nutrient absorption, and maintains a peptide-rich environment for immune regulation
Its the most effective method for delivering this essential nutrient directly where it's needed, allowing for higher concentrations and more immediate effects
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