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Very serious side effects such as chest pain and difficulty breathing are rare
Crohns disease, a form of inflammatory bowel disease (IBD), is a lifelong condition that results in inflammation and irritation of the digestive tract
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Several factors influence the appropriate dose of vitamin B12, including the severity and underlying cause of your deficiency, your age, overall health status, and your bodys ability to absorb vitamin B12 from food or oral supplements
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