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Liver function tests, insulin and blood sugar levels, PSA for cancer screening, and cortisol
The standard recommendation is one 500 mcg capsule twice daily on an empty stomach
Other potential and more serious risks include pancreatitis and gallbladder problems
You need to have an intrinsic factor, a protein made by cells in your gut lining to bring B12 into circulation, transcobalamin proteins to move it around the body and finally, pancreatic enzymes for absorption
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