Vitamin B12

Other marker

Vitamin B12

Category: Other
Unit: pmol/L

Essential vitamin for nerve function and red blood cell production.

PED Notes

Important for energy, recovery, nerve function, and red blood cell production. Deficiency causes fatigue, neurological symptoms, and elevated homocysteine (cardiovascular risk). Critical for homocysteine metabolism alongside Folate and B6.

Supplements:

  • Methylcobalamin (active B12) -- 1000mcg/day sublingual
  • Or B12 injections -- common in bodybuilding community for energy

Note: Ensure adequate B12 alongside Folate and B6 to keep homocysteine in check

References:

  • Stabler, S. P. (2013). Vitamin B12 deficiency. New England Journal of Medicine, 368(2), 149-160. DOI: 10.1056/NEJMcp1113996
  • Huang, T., Chen, Y., Yang, B., et al. (2012). Meta-analysis of B vitamin supplementation on plasma homocysteine, cardiovascular and all-cause mortality. Clinical Nutrition, 31(4), 448-454. DOI: 10.1016/j.clnu.2011.01.003

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Reference Ranges

Standard Range

150 - 750 pmol/L

VitalMetrics Range

300 - 750 pmol/L

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