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Malabsorption of vitamin B12, resulting from structural or functional damage to the stomach, where intrinsic factor is secreted or to the ileum, where intrinsic factor facilitates vitamin B12 absorption
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If you experience anything unusual such as severe pain or swelling, persistent dizziness, difficulty breathing, or a significant rash, please contact us immediately or seek medical advice
Symptoms of vitamin B12 deficiency include (1): chronic fatigue shortness of breath heart palpitations tingling or numbness in the extremities poor balance loss of concentration poor memory disorientation mood changes incontinence insomnia People most at risk of developing a deficiency include older adults, as well as those who smoke, abuse alcohol, or follow a vegetarian or vegan diet
Screening for vitamin B12 deficiency is done for patients with one or more risk factors, such as gastric or small intestine resections, and inflammatory bowel disease
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