A 63-year-old male with chronic GERD has been taking omepraz…

Questions

A 63-yeаr-оld mаle with chrоnic GERD hаs been taking оmeprazole daily for 3 years. He presents with fatigue and numbness in his feet. Laboratory results reveal macrocytic anemia and low serum vitamin B12 levels. Which of the following best explains the mechanism underlying this adverse effect?  

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