The reason to show it long-hand rather than just stating the answer is that on the 10 mg vial the draw is tiny, and a reader who understands the chain can catch an error the moment a number looks wrong
Vitamin B12 is mainly excreted in the urine and bile
This is consistent with many animal studies and in-depth immunological studies that show, as expected, a measurable contribution to protection via non-nAb [56,57,58], NK cells [59], and MAIT cells [60, 61] and in particular T cells [62,63,64,65]
The earliest to be deployed were the Pfizer BNT162b2 and the Moderna mRNA-1273 vaccines
Keep in mind that B-complex supplements can contain eight water-soluble vitamins, including: B1 (thiamine) B2 (riboflavin) B3 (niacin) B5 (pantothenic acid) B6 (pyridoxine) B7 (biotin) B9 (folate/folic acid) B12 (cobalamin) Tips For Safe Supplementation 1
Rarely, you may get a blood transfusion along with B12 treatment