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The biomarker methylmalonic acid in urine is sensitive, detecting early functional vitamin B12 deficiency before the onset of macrocytic anemia, as noted for MMA in serum

It would also be useful for people who have not been taking supplements for some time or do not know their status, although it is always advisable in any case to have a check-up beforehand to assess the situation

Melanie Speed, APRN, NP-C, CANS , offers personalized care to meet your specific health needs

Why do we need B12

Customized care Every moment of our process is personalized to ensure a truly individualized and meaningful experience, which means we never work off of a one-size fits all script