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It relies on a protein called intrinsic factor in your stomach to be absorbed
Because the injection bypasses your digestive system, your body can access the B12 quickly instead of waiting for absorption from food
Rather than supplying additional precursors, it limits NAD+ depletion by inhibiting NNMT, allowing exploration of upstream metabolic control
This increased demand can potentially create relative deficiencies in these co-factors, even if their levels were previously adequate
This helps to force the liquid vitamin into the syringe
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