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No published controlled human trial was identified for this article
Sport Compliance: Falls under the World Anti-Doping Agency's (WADA) S0 classification, meaning all non-approved substances are prohibited in competition
Red blood cell formation: B12 helps create healthy red blood cells that carry oxygen throughout your body
A consultation to discuss your medical history, as well as family medical history, is advised prior to receiving B12 injections
If you think you're low on B12, get a blood test
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