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If you have a vitamin B12 deficiency, a doctor may prescribe B12 injections every other day for 2 weeks until your symptoms improve

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1 1 Although each of the neurotropic B vitamins has its own special role in nerve health, they all work together in synergy to repair, regenerate and protect the nerve fibers that make up your nervous system

But when combined with L-citrulline , an amino acid that serves as a precursor to nitric oxide (NO) by way of L-arginine, something remarkable happens: enhanced nitric oxide production and signaling that can benefit athletes across multiple metrics

Symptoms of High B12 Levels In many cases, high vitamin B12 levels do not cause noticeable high vitamin B12 symptoms