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Allergy to vitamin B12: two cases of successful desensitization with cyanocobalamin
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Who is more likely to have low B12 Vegetarians and vegans, since B12 comes mainly from animal foods Adults over 50, because absorption naturally declines with age People with gut conditions such as celiac, Crohn, or past GI surgery Long-term users of metformin or acid-reducing medications People who have had weight-loss (bariatric) surgery Those with heavy or frequent alcohol use If you see yourself in that list, a simple blood test is the logical next step
See what is AHK-Cu used for and GHK-Cu
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