Description
The uptake of cobalamin (vitamin B₁₂ ) from the distal small intestine is reduced in the presence of bacterial overgrowth.or small intestine disease 

Measurement of serum cobalamin concentrations may give an indication of the presence of overgrowth if the levels are low.

When determined by competitive binding assay the normal range for serum cobalamin concentrations in dogs is 300-800 ng/L.

Interpretation of the results can be confounded by the presence of exocrine pancreatic insufficiency, mucosal disease, vitamin supplementation. 

Giant Schnauzer dogs sometimes have an inherited disorder characterized by malabsorption of cobalamin. 

Last updated : October January