In order to absorb B12 in the terminal ileum, the stomachs parietal cells produce a glycoprotein referred to as Intrinsic Factor (IF)
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Laboratory testing provides objective confirmation
Wellness Without Overclaiming We position B12 as wellness support, not as a guaranteed fix or treatment for disease
24 Table 3 Estimated Sensitivity and Specificity of Serum Laboratory Tests for Vitamin B12 Deficiency Pernicious anemia refers to one of the hematologic manifestations of chronic auto-immune gastritis, in which the immune system targets the parietal cells of the stomach or intrinsic factor itself, leading to decreased absorption of vitamin B 12
Fetal and infant growth and impaired glucose tolerance at age 64