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You may see do-it-yourself (DIY) B12 test kits for sale online, but there are many reasons to skip these, says Ren
I plan to continue to use this
A deficiency can creep up gradually, making it easy to dismiss symptoms as stress or simply getting older. However, if left untreated, low B12 levels can lead to serious health issues
Doses are adjusted based on lab results, how the patient responds, and individual assessments
Vitamin B12 can be converted to coenzyme B12 in tissues
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