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Taking stomach acid-lowering drugs : Medications can block absorption, including antacids used to treat conditions like gastritis or esophageal reflux and antihistamines
The genetic problems associated with B12 deficiency are not widely understood amongst health professionals despite their effect on a huge percentage of the population
Taking certain medicines can interfere with how your body absorbs vitamin B12
For example, the protein structure of gluten looks a lot like the protein structure of your thyroid gland
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