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Vitamin B12 is watersoluble, meaning that excess amounts not needed by the body are usually filtered out through urine
Lab testing is not always necessary, but it may be recommended if symptoms persist or there is concern about a deficiency
[12] However, any time you receive an injection, theres a very small risk of infection or allergic reaction
Whether used for medical necessity or off-label purposes, the potential complications range from uncomfortable to life-threatening, making it essential to approach treatment with appropriate medical supervision and preliminary testing
Differences may reflect participant age, sex, health status, body composition, medication use, physical activity, sampling time, assay methods, peptide stability, or small sample sizes
