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Will Changing My B12 Dose Help With the Symptoms
R.DuttaA.SimonE
Each strip dissolves quickly and completely, which supports uniform exposure across repeated trials
Functional cobalamin deficiency in the general United States population (2024) What was found: researchers analyzing more than 22,000 adults from the National Health and Nutrition Examination Survey defined functional cobalamin deficiency as a raised methylmalonic acid despite a serum B12 above 400 pg/mL
Others may be better suited to oral supplements or GP-led investigation
Key cited studies: Heffernan M et al
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