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Vitamin B12 also plays a vital role in allowing the brain and nerves to work properly
This ensures 100% absorption, making injections vastly more effective than oral supplements for those with compromised gut health
J., & Xu, J
Vitamin B12 injections deliver 100% bioavailable cobalamin directly into the bloodstream bypassing the stomach acids that destroy oral supplements
Within 48 hours after injection of 100 or 1,000 mcg of vitamin B 12 , 50 to 98% of the injected dose may appear in the urine
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