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It comes from a protein in the stomach
Book Online Vitamin B12 Deficiencies Deficiency can occur due to medications, gastrointestinal or autoimmune disorders, alcoholism, bariatric surgery, strict vegetarian diets, prolonged antacid or proton pump inhibitor use, or advanced age
In addition, QA can disrupt the balance between reduced glutathione and oxidized glutathione, leading to impairment of the antioxidant defense system [67]
CN, CI vs
Mantua J, Helms SM, Weymann KB, Capaldi VF 2nd, Lim MM
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