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In summary, after consideration of the public comment we received, we are finalizing the APC assignments for CPT codes 36836 and 36837 without modification

Les personnes ges de plus de 50 ans : leur acidit gastrique rduite diminue labsorption de la vitamine prsente dans les aliments

High-dose oral B12 can even help overcome mild absorption problems, as some of the vitamin is absorbed passively

Heme iron is typically absorbed at a higher rate than non-heme iron, which means that the body more easily absorbs iron from animal products than iron derived from plant foods

Although we performed multivariate adjustments, residual confounding may persist due to unmeasured factors such as dietary habits (e.g., irregular intake of animal-derived foods or B12-fortified products), unrecorded use of nutritional supplements, and genetic predispositionsparticularly MTHFR polymorphisms, which are known to influence homocysteine metabolism and folate cycling, thereby potentially altering the functional demand for vitamin B12