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However, as your body naturally filters and excretes the vitamin, those stores gradually deplete
[15] [16] Tests may include full blood count, serum B12 levels, anti-intrinsic factor antibodies (to diagnose pernicious anaemia), and sometimes methylmalonic acid or homocysteine levels when the diagnosis is uncertain
Your current weight, overall health, prior attempts at weight loss, and Body Mass Index (BMI) are all factors we consider when discussing weight-loss medication options
To absorb B12 from food or from a pill, your body needs three things working together: Stomach acid , which releases B12 from the protein it is bound to Intrinsic factor , a protein your stomach lining makes that escorts B12 through your gut A healthy small intestine , specifically the last section, where B12 is finally taken in Should even one of these three steps break down, absorbing B12 from a tablet becomes difficult
This is why injections are often discussed when the target is not mainly the gut
