For fatigue, the centenarian trial (PMID 18065594) dosed 2 g/day over weeks before reporting reduced physical and mental fatigue the improvement was a treatment-period outcome, not a first-dose one
Centella also carries a nice supporting cast of Vitamin A, vitamin C, several B vitamins, and amino acids
Timeline reference points (research planning) Timeframe Days 1-7 Commonly tracked Acute pain reports, injection-site response Notes Anti-doping rule violation begins immediately for tested athletes
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Choosing and using supplements wisely Forms: cyanocobalamin vs methylcobalamin both are used, and some consider that the methyl is superior to the cyanocobalamin in nerve support
This prevents confusion later when you are pulling doses at different points in the vial's life