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Persistent elevation of plasma vitamin B12 is strongly associated with solid cancer
The deltoid muscle or gluteal muscle are common spots
The shade ranges from a pale, barely-there blush to a deeper reddish-pink that some people describe as light salmon or strawberry
The following conditions can cause absorption to be inadequate: Overgrowth of bacteria in part of the small intestine Impaired absorption (malabsorption disorders such as celiac disease or certain pancreatic disorders) Inflammatory bowel disease affecting the last part of the small intestine (IBS) Surgery that removes the part of the small intestine where vitamin B12 is absorbed Drugs such as antacids and metformin (used to treat diabetes) Repeated exposure to nitrous oxide (laughing gas) Lack of intrinsic factor Decreased stomach acidity (common among older people) Intrinsic factor may be lacking because abnormal antibodies, produced by an overactive immune system that attacks and destroys the stomach cells that produce intrinsic factor (An autoimmune reaction called autoimmune metaplastic atrophic gastritis.) Intrinsic factor may be lacking because the part of the stomach where intrinsic factor is produced was surgically removed
Investigating the Link Most vitamins dont cause serious problems
Regular B12 injections are a common treatment for peripheral neuropathy caused by a range of illnesses
