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Stomach acid and enzymes free vitamin B 12 from food, allowing it to bind to R-protein (formerly known as transcobalamin I and now called haptocorrin), found in saliva and gastric fluids
Its safety profile across roughly 900 participants remains one of the strongest in this peptide category
Only concentration links the two
B12 injections can offer a practical solution to maintain healthy levels of the vitamin while adhering to a plant-based diet
Some anecdotal side effects include mild lethargy, nausea, or dizziness
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