Vitamin C and vitamin B12 are a bad pairing when they hit your system at the same time. One can shred the other before your body gets a chance to use it, and the fallout shows up as fatigue, tingling hands, foggy concentration, and that weird drained feeling that makes even a normal morning feel heavy.
That’s the part most people never connect. They think they’re building strength with a “healthy” stack, but inside the gut, one capsule is quietly sabotaging the other like a factory worker cutting the power
