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Description
No published metabolic biomarker dataset for human use

Fuel your body and mind with Methylated B12 Liquid Extract, a highly bioavailable form of vitamin B12 (methylcobalamin) designed to support energy, cognitive health, and overall vitality

Meth-Cohn, Eds., Comprehensive Natural Products Chemistry
The absence of clear symptoms means that elevated B12 is usually detected incidentally during blood tests performed for other clinical indications