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Reported symptoms include headache, nausea, diarrhea, facial flushing, and in rare cases, skin rash or tingling
Timing Optional Marker Urinalysis Why it matters Can add kidney and hydration context when systemic symptoms, high training stress, or abnormal CMP kidney markers appear
They can improve their lives with the right Vitamin B12 doses
It is not intended for human or animal use, nor for diagnostic, therapeutic, or cosmetic application
Fatigue: Some users report feeling more tired than usual, especially in the first few weeks
But the therapeutic window narrows sharply the moment you add anything else affecting dopamine, norepinephrine, or serotonin
