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For instance, vitamin B2 (riboflavin) and the essential trace mineral selenium are necessary for the recycling [the enzyme glutathione reductase is considered a flavoenzyme (i.e., it needs a coenzyme form of riboflavin, flavin adenine dinucleotide to operate)] of and use [the enzyme glutathione peroxidase is a selenoprotein (i.e., it needs a its cofactor selenium to operate)] of glutathione, respectively
25 and Fig
Even experienced doctors are sometimes stumped when interpreting high B12 blood values, so here is a little guide on how to proceed in such cases: Guide to High Vitamin B12 Blood Levels Sources E
