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As NAD+ levels naturally decline with age, stress, and physical demand, targeted supplementation may help maintain optimal cellular performance
Any stomach disorders, or conditions like pernicious anemia where Intrinsic Factor is lacking, can prevent B12 absorption, as can intestinal inflammation such as Crohns disease if a damaged terminal ileum cannot take up vitamin B12
Three milliliters yields 10 mg/mL
Storage for sublingual liquids is generally refrigerated
Diagnosis typically involves blood tests including full blood count (showing macrocytosis), anti-intrinsic factor antibodies (which are specific for pernicious anaemia), and sometimes anti-parietal cell antibodies
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