But you can't practise evidence-based medicine on a substance that has no evidence," said Phillips
For tested athletes, it is banned by WADA (S0)
Clinical effect depends on the reason for use, individual metabolism, formulation, and adherence, so a clinician sets the cadence after reviewing your history and goals rather than following a blanket interval from an article
This allows your body to process the B12 before the Vitamin C enters your system
If the solution becomes cloudy or discolored after reconstitution, discard it
Any perceived benefits typically relate to correction of deficiency symptoms such as fatigue, which may indirectly improve capacity for physical activity