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Experimental use should follow applicable laboratory protocols, ethical approvals, and regulatory standards
Intrinsic factor binds to vitamin B12, so that you can absorb it into the blood
This means its use is prohibited at all times for athletes subject to WADA regulations
People with normal liver function store 50% of their vitamin B12 in their liver, so if your liver is not functioning properly, you may need more vitamin B12 shots than those whose livers are working as designed
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