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In other situations, lab testing is very important
Two rules override everything in that table
Patients should pursue evidence-based alternatives rather than research-grade sourcing
Ideal suppliers adhere to strict quality control processes
Elevated levels of B12 could be indicative of certain health concerns, Vettel says, including: Cancer Diabetes Impaired kidney function Liver disease If you have elevated levels of B12, your doctor may run other tests to determine the underlying cause
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