Vegetarians and Vegans Vitamin B12 isnt produced by our bodies despite being one of the most important nutrients needed for everyday function
Vitamin B12 deficiency is defined as a serum vitamin B12 level of less than 150 pmol/L
The intensity of the color reflects the B12 concentration
Thats where body weight matters, as it directly affects blood plasma concentration of copper peptides
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Theyre equally effective, but cyanocobalamin is more commonly prescribed