Methionine synthase reductase, encoded by MTRR, is responsible for reactivating methionine synthase to its functional form
Wagner, S., Manickam, R., Brotto, M
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Hepatology 60 , 20992108 (2014)
This spray uses cyanocobalamin, the most widely studied and highly stable form of Vitamin B12. It delivers 500 mcg per serving (20,833% Daily Value)an effective dose without extreme megadosing.*
Other side effects include the accumulation of toxins which can damage the liver, anorexia or loss of appetite, vomiting, azotemia -- elevation of blood urea nitrogen (BUN) -- and the development of a dry cough due to the accumulation of bradykinin