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Tuba-Kartal and ala-Mutlu, 2020
Efficacy of oral versus intramuscular vitamin B12 supplementation following RouxenY gastric bypass
[DOI] [PMC free article] [PubMed] [Google Scholar] 69
Important things to keep in mind include: Serum B12 levels should be normal for most people Methylmalonic acid (MMA) and homocysteine levels can show if B12 is really working, even if levels seem fine How symptoms change is also important When and How to Adjust Dosing Regimens Doctors might need to change the dose based on test results and how the patient is doing
Most of us can get a sufficient amount of vitamin B12 purely through diet, but there are some cases where dietary restrictions make consuming the vitamin through food incredibly difficult, or where the body is not able to absorb the amount of vitamin B12 that it requires
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