Dietary factors : Vegans and strict vegetarians : As B12 is found almost exclusively in animal products, those avoiding all animal-derived foods are at high risk unless they consume fortified foods or supplements regularly Older adults : Reduced stomach acid production with age can impair B12 absorption from food, with risk increasing progressively with advancing age Medical conditions affecting absorption : Pernicious anaemia : An autoimmune condition where the body cannot produce intrinsic factor, a protein essential for B12 absorption in the small intestine Gastrointestinal disorders : Crohn's disease, coeliac disease, and other conditions affecting the terminal ileum can impair B12 uptake Post-surgical patients : Those who have undergone gastric bypass or removal of parts of the stomach or small intestine Medication-related risk : Metformin : Commonly prescribed for type 2 diabetes, long-term use can reduce B12 absorption
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[101] conducted specific codes such as SVM, RF, and k-nearest neighbor (KNN) for capturing the levels of serum androgens, corticosteroids, progestins, estrogens, testosterone, and sex hormone-binding globulin of the steroid hormone biosynthesis pathway
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Franzen E Article: SPINAL CORD