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Intrinsic factor antibodies
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G., Maroto, R., Wang, H
These include a red, swollen tongue, angular cheilitis (sores on the sides of your mouth), and a loss of taste receptors, also known as papillae
But there is no established upper limit for vitamin B12 due to its low potential for toxicity
1.52.0 g of synthetic vitamin B 12 saturates the IF-cobalamin ileal receptors, but other studies have shown higher absorption rates
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