If you have MTHFR mutations and previous poor response to cyanocobalamin supplements, you might prefer a formulation containing methylcobalamin instead
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B., Drmic, D., Grgic, T., Strbe, S., Zukanovic, G., Crvenkovic, D., Madzarac, G., Rukavina, I., Sucic, M., Baric, M., Starcevic, N., Krstonijevic, Z., Bencic, M
5 The body excretes three times more cyanocobalamin in urine than methylcobalamin
The goal here is no longer rapid replenishment but steady upkeep
[3] Metabolic risk in offspring [edit] Vitamin B 12 is a critical micronutrient essential for supporting the increasing metabolic demands of the foetus during pregnancy